mako LCD: keep RGB custom colors alive after screen off/on

When the back-light turns back on, reset the RGB values set in
sysfs (/sys/devices/platform/kcal_ctrl.0/kcal)
video: lm3530_bl: Introduce new tunables to control LED driver

- min_br: sets the mininum brightness level (2-114)
- max_br: sets the maximum brightness level (2-114)
- br_mode: sets the linear (default 1) or exponential (0) brightness
mapping mode.

Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>

Conflicts:

	arch/arm/mach-msm/lge/mako/board-mako-display.c
msm: mipi_lgit: Add lcd_notify wrapper
defconfig: Enable FB_MSM_LCD_NOTIFY

Signed-off-by: CallMeAldy <aldrin.holmes20@gmail.com>
lge_touch_core: Removed unused int variable retry