www/chromium: update to 92.0.4515.159

Mark broken on i386 for now, it does not compile there because of a
ssize_t * vs off_t * mismatch.

MFH:		2021Q3
Security:	https://vuxml.freebsd.org/freebsd/128deba6-ff56-11eb-8514-3065ec8fd3ec.html
Security:	https://vuxml.freebsd.org/freebsd/c3c6c4a3-f47d-11eb-b632-3065ec8fd3ec.html
Security:	https://vuxml.freebsd.org/freebsd/76487640-ea29-11eb-a686-3065ec8fd3ec.html