Gamma Control: separate whites, grays, mids and blacks by RED, GREEN and BLUE settings. Contrast, Brightness and Saturation are common to the RGB spectrum as it makes no sense to have separates for this options. TODO: add a function to reset all the gamma stats to default.

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>

Conflicts:
	drivers/misc/gamma_control.c
	drivers/video/msm/mipi_lgit.c