gamma_control: add extensive control over the display gamma curve.

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

Conflicts:
	drivers/misc/Kconfig
	drivers/misc/Makefile

Conflicts:
	drivers/misc/Makefile

Conflicts:
	drivers/misc/Makefile
gamma_control: fix permissions for userspace apps.

Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
gamma_control: change to stock values.

Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
Remove '+' symbol from kernel version string

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