LiveOPP: Add vbb and avs interfaces

Also, with some cleanups.

Signed-off-by: cocafe <cocafehj@gmail.com>

Conflicts:

	drivers/mfd/db8500-prcmu.c
mali: ux500: different voltages for ape_50_opp

experimental

Signed-off-by: Shilin Victor <chrono.monochrome@gmail.com>
Revert "mali: ux500: different voltages for ape_50_opp"

This reverts commit 4861314a4bdd7c6a37e74f25261e5e7e9a751472.
add zenX