mali: GPU control (thx to AndreiLux)

GPU frequency, scaling and voltage control.
Based on netarchy's initial implementation and improvements of gokhanmoral and ported onto the pegasus-m400 / Galaxy S3 platform.

adjusted and slightly corrected by andip71

Conflicts:

	arch/arm/configs/boeffla_defconfig
Fixed MHL no sound issue

Revert : ASoC: wm8994: Ensure there are enough BCLKs for four channels

commit b8edf3e5522735c8ce78b81845f7a1a2d4a08626 upstream.

Otherwise if someone tries to use all four channels on AIF1 with the
device in master mode we won't be able to clock out all the data.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 (reverse-merged from commit 3b6ae1807d29f8cacd63fddf513110f9308b4c8e)