security/nettle: unbreak on aarch64 after c328d3ca

/usr/bin/cc -I. -isystem /usr/local/include -DHAVE_CONFIG_H -O2 -pipe  -I/usr/include -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing  -ggdb3 -Wall -W -Wno-sign-compare   -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes   -Wpointer-arith -Wbad-function-cast -Wnested-externs -fpic -MT chacha-4core.o -MD -MP -MF chacha-4core.o.d -c chacha-4core.s
chacha-4core.s:125:23: error: invalid operand for instruction
        add             v24.4s, v24.4s, v160.4s
                                        ^
chacha-4core.s:126:7: error: invalid operand for instruction
        add             v163.4s, v163.4s, v164.4s
                        ^
chacha-4core.s:129:7: error: invalid operand for instruction
        eor             v162.16b, v162.16b, v24.16b
                        ^
chacha-4core.s:130:7: error: invalid operand for instruction
        eor             v166.16b, v166.16b, v163.16b
                        ^
chacha-4core.s:133:8: error: invalid operand for instruction
        rev32   v162.8h, v162.8h
                ^
chacha-4core.s:134:8: error: invalid operand for instruction
        rev32   v166.8h, v166.8h
                ^
chacha-4core.s:138:7: error: invalid operand for instruction
        add             v161.4s, v161.4s, v162.4s
                        ^
chacha-4core.s:139:7: error: invalid operand for instruction
        add             v165.4s, v165.4s, v166.4s
                        ^
chacha-4core.s:142:15: error: invalid operand for instruction
        eor             v6.16b, v160.16b, v161.16b
                                ^
chacha-4core.s:143:15: error: invalid operand for instruction
        eor             v7.16b, v164.16b, v165.16b
                                ^
chacha-4core.s:146:7: error: invalid operand for instruction
        ushr    v160.4s, v6.4s, #20
                ^
chacha-4core.s:147:7: error: invalid operand for instruction
        ushr    v164.4s, v7.4s, #20
                ^
chacha-4core.s:150:7: error: invalid operand for instruction
        sli             v160.4s, v6.4s, #12
                        ^
chacha-4core.s:151:7: error: invalid operand for instruction
        sli             v164.4s, v7.4s, #12
                        ^
chacha-4core.s:155:23: error: invalid operand for instruction
        add             v24.4s, v24.4s, v160.4s
                                        ^
chacha-4core.s:156:7: error: invalid operand for instruction
        add             v163.4s, v163.4s, v164.4s
                        ^
chacha-4core.s:159:7: error: invalid operand for instruction
        eor             v162.16b, v162.16b, v24.16b
                        ^
chacha-4core.s:160:7: error: invalid operand for instruction
        eor             v166.16b, v166.16b, v163.16b
                        ^
chacha-4core.s:163:18: error: vector register expected
        tbl             v162.16b, {v162.16b}, v8.16b
                                   ^
chacha-4core.s:163:26: error: unknown token in expression
        tbl             v162.16b, {v162.16b}, v8.16b
                                           ^
chacha-4core.s:163:26: error: invalid operand
        tbl             v162.16b, {v162.16b}, v8.16b
                                           ^
chacha-4core.s:164:18: error: vector register expected
        tbl             v166.16b, {v166.16b}, v8.16b
                                   ^
chacha-4core.s:164:26: error: unknown token in expression
        tbl             v166.16b, {v166.16b}, v8.16b
                                           ^
chacha-4core.s:164:26: error: invalid operand
        tbl             v166.16b, {v166.16b}, v8.16b
                                           ^
chacha-4core.s:168:7: error: invalid operand for instruction
        add             v161.4s, v161.4s, v162.4s
                        ^
chacha-4core.s:169:7: error: invalid operand for instruction
        add             v165.4s, v165.4s, v166.4s
                        ^
chacha-4core.s:172:15: error: invalid operand for instruction
        eor             v6.16b, v160.16b, v161.16b
                                ^
chacha-4core.s:173:15: error: invalid operand for instruction
        eor             v7.16b, v164.16b, v165.16b
                                ^
chacha-4core.s:176:7: error: invalid operand for instruction
        ushr    v160.4s, v6.4s, #25
                ^
chacha-4core.s:177:7: error: invalid operand for instruction
        ushr    v164.4s, v7.4s, #25
                ^
chacha-4core.s:180:7: error: invalid operand for instruction
        sli             v160.4s, v6.4s, #7
                        ^
chacha-4core.s:181:7: error: invalid operand for instruction
        sli             v164.4s, v7.4s, #7
                        ^
chacha-4core.s:186:23: error: invalid operand for instruction
        add             v24.4s, v24.4s, v160.4s
                                        ^
chacha-4core.s:187:7: error: invalid operand for instruction
        add             v163.4s, v163.4s, v164.4s
                        ^
chacha-4core.s:190:7: error: invalid operand for instruction
        eor             v162.16b, v162.16b, v24.16b
                        ^
chacha-4core.s:191:7: error: invalid operand for instruction
        eor             v166.16b, v166.16b, v163.16b
                        ^
chacha-4core.s:194:8: error: invalid operand for instruction
        rev32   v162.8h, v162.8h
                ^
chacha-4core.s:195:8: error: invalid operand for instruction
        rev32   v166.8h, v166.8h
                ^
chacha-4core.s:199:7: error: invalid operand for instruction
        add             v161.4s, v161.4s, v162.4s
                        ^
chacha-4core.s:200:7: error: invalid operand for instruction
        add             v165.4s, v165.4s, v166.4s
                        ^
chacha-4core.s:203:15: error: invalid operand for instruction
        eor             v6.16b, v160.16b, v161.16b
                                ^
chacha-4core.s:204:15: error: invalid operand for instruction
        eor             v7.16b, v164.16b, v165.16b
                                ^
chacha-4core.s:207:7: error: invalid operand for instruction
        ushr    v160.4s, v6.4s, #20
                ^
chacha-4core.s:208:7: error: invalid operand for instruction
        ushr    v164.4s, v7.4s, #20
                ^
chacha-4core.s:211:7: error: invalid operand for instruction
        sli             v160.4s, v6.4s, #12
                        ^
chacha-4core.s:212:7: error: invalid operand for instruction
        sli             v164.4s, v7.4s, #12
                        ^
chacha-4core.s:216:23: error: invalid operand for instruction
        add             v24.4s, v24.4s, v160.4s
                                        ^
chacha-4core.s:217:7: error: invalid operand for instruction
        add             v163.4s, v163.4s, v164.4s
                        ^
chacha-4core.s:220:7: error: invalid operand for instruction
        eor             v162.16b, v162.16b, v24.16b
                        ^
chacha-4core.s:221:7: error: invalid operand for instruction
        eor             v166.16b, v166.16b, v163.16b
                        ^
chacha-4core.s:224:18: error: vector register expected
        tbl             v162.16b, {v162.16b}, v8.16b
                                   ^
chacha-4core.s:224:26: error: unknown token in expression
        tbl             v162.16b, {v162.16b}, v8.16b
                                           ^
chacha-4core.s:224:26: error: invalid operand
        tbl             v162.16b, {v162.16b}, v8.16b
                                           ^
chacha-4core.s:225:18: error: vector register expected
        tbl             v166.16b, {v166.16b}, v8.16b
                                   ^
chacha-4core.s:225:26: error: unknown token in expression
        tbl             v166.16b, {v166.16b}, v8.16b
                                           ^
chacha-4core.s:225:26: error: invalid operand
        tbl             v166.16b, {v166.16b}, v8.16b
                                           ^
chacha-4core.s:229:7: error: invalid operand for instruction
        add             v161.4s, v161.4s, v162.4s
                        ^
chacha-4core.s:230:7: error: invalid operand for instruction
        add             v165.4s, v165.4s, v166.4s
                        ^
chacha-4core.s:233:15: error: invalid operand for instruction
        eor             v6.16b, v160.16b, v161.16b
                                ^
chacha-4core.s:234:15: error: invalid operand for instruction
        eor             v7.16b, v164.16b, v165.16b
                                ^
chacha-4core.s:237:7: error: invalid operand for instruction
        ushr    v160.4s, v6.4s, #25
                ^
chacha-4core.s:238:7: error: invalid operand for instruction
        ushr    v164.4s, v7.4s, #25
                ^
chacha-4core.s:241:7: error: invalid operand for instruction
        sli             v160.4s, v6.4s, #7
                        ^
chacha-4core.s:242:7: error: invalid operand for instruction
        sli             v164.4s, v7.4s, #7
                        ^