msm_fb: display: add support for HTC display_on function

Change-Id: Ib20c0019b6a55b1bc53c9b8ca3e8ff8d626e881b
msm: HTC 8960: update panel code for CAF display code

Change-Id: Ie3c19793afe69f24c79298e9b8964ac620bbbd52

Conflicts:
	arch/arm/mach-msm/board-elite.c
	arch/arm/mach-msm/display/board-elite-panel.c
	arch/arm/mach-msm/display/board-ville-panel.c