ARM: dts: msm: Add support for HD+ video mode panel on msm8917

Add changes to add panel init sequence, on/off commands and other
panel properties for MirrorLake HD+ (720x1440p) video mode panel
for msm8917.

Change-Id: I87eb32496ea21c6f94e25b8dab0e19698a0abf78
Signed-off-by: Rashi Bindra <rbindra@codeaurora.org>