merge changes from sultan defconfig

Change-Id: I0a777a56389a3afbd7fe73e7dfa7f220de201c90
Disabled some governors from bruce's

Change-Id: I9fda3e4c83e6e2ff99e60af0d898950f620cb361
Reverted the RCU boost changes

Change-Id: I348c0d1e0bddd19a773450c731bea01b4c867f37
Cleaned up build script a bit

Change-Id: I8b9f9181f17d22058506b99203eb96719711b420
Switch compilers

Change-Id: I20e2226a664d16c5d9eb5e013629ec7d147b5f2f
Revert "Reverted the RCU boost changes"

This reverts commit 3840571d23220407bb17aa992eed28f51b9582dc.