add oc and uc

Change-Id: Ia6d7a0f5c652c8832a54975dd806f258db198941
Revert "Voltage Control: generic voltage control for DTS based kernels"

This reverts commit 3f192a597f87b1371def8e3ce01c4bbedc7b3e13.
Revert "clock-krait/cpufreq: custom voltage control v1"

This reverts commit 07fc881a9cc23b0a6d3b9af13433cb592e246f31.
Voltage Control: generic voltage control for DTS based kernels

Signed-off-by: Paul Reioux <reioux@gmail.com>

Conflicts:
	arch/arm/mach-msm/clock-krait-8974.c
	drivers/cpufreq/cpufreq.c

Change-Id: I2cdcfade9a48acc1f50edba7de29f5df60a018b7