Voltage Control: initial voltage control for MSM Snapdragon 800 SOC

Signed-off-by: Paul Reioux <reioux@gmail.com>
Signed-off-by: flar2 <asegaert@gmail.com>

Conflicts:
	arch/arm/mach-msm/Kconfig
	arch/arm/mach-msm/acpuclock-krait.c

Change-Id: If9994cb662b78b56f83db9bf365bc1d4c4146967
Voltage Control: add sysfs interface

Signed-off-by: faux123 <reioux@gmail.com>
Signed-off-by: flar2 <asegaert@gmail.com>
Update defconfig with Volatge Control

Change-Id: Ie661d18ead90fa2fab0a9fe8aef0c1b32add0100