video: msm: Fix initial state of LCD backlight

 * For devices which use the LCD backlight (such as D2), we need
   to actually call the function which sets the brightness after
   initializing it in the probe.

Change-Id: Id6b7c0de3cd31181394c56c7f6061bca9defd861
msm: display: Prevent fb suspend in charging mode for all

Conflicts:
	drivers/video/msm/msm_fb.c