Merge the RegCache changes from the old neon-vfpu branch
Merge the rest of the old NEON branch.
Undo some accidental reverts
Some more
Update CMakeLists.txt
Merge pull request #7141 from hrydgard/neon-vfpu-2

The old neon-vfpu branch, rebased on master
We can use sincosf again on Android - the bug in the NDK has been fixed.
ARM jit: Prepare for joining vrot ops
ARM Jit: Join adjacent vrot ops on ARM too
ARM Jit: Implement vfad/vavg