Voltage Control: add sysfs interface

Signed-off-by: faux123 <reioux@gmail.com>
re-enable LZ4 in defconfig
disable perflock
kernel:power: Fix HTC Onmode Charging
fix build with perflock disabled
disable pnpmanager
disable msm freq limiter
fix build when pnpmgr is not set
Revert "disable pnpmanager"

This reverts commit 0f9be74e21b0db903dd699e52bfebb337b8031f1.
Revert "disable perflock"

This reverts commit 66dfb3db09d5058702a822c72d34194b00f2c939.