arm64: Add kernel variant for 64K page-sized ARM64
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2153073
Upstream: RHEL only
Modify redhat/config files to create kernel-64k-.aarch64
kernel, an ARM64 kernel that has page_size set to 64K vs the
kernel-.aarch64 kernel that has a page_size of 4K.
Testing:
a) Boot tested on Ampere-based, Mt. Snow
b) Did a sysrq forced crash to verify kexec & kdump work;
ran crashdump against the crash file to check basic
crash functionality as well.
Signed-off-by: Donald Dutile ddutile@redhat.com