Revert "fix seqlocj.h"

This reverts commit 1a5c04d3549ac6c1f32d40752c5a47676782126e.
Revert "fix processor.h"

This reverts commit 31b052acbde10422bbca588a121ae6c004069e9c.
Revert "Squash 'enhance power efficiency' patches"

Just for Arm V8
This reverts commit 9cee55b5ae5047d03a3bf2a1997f72bae4837694.