Remove sparc64 example.
Remove sparc64 ifdef
Now we default to setting the hardware clock to UTC
everywhere. sparc64 was the old odd-man out before.
Fix comment. It mentioned sparc64 specifically, but alignment issues are present elsewhere.
Fix a comment for the SUN geom class.
For valid arch values (really $MACHINE), remove references to alpha and sparc64. Add references to arm64 and riscv
Remove sparc64 specific eeprom command
This command was only ever for sparc64, so remove it. Remove
usr.sbin/Makeiile.sparc64 as well since it only references ofwdump
(cross platform) and eeprom.
Refresh architecture list with latest:
Remove: sparc, sparc64 (twice), ia64, alpha
Remove now-useless sparc64 ifdef
Remove ifdefs for ia64 and sparc64.