ARM: dts: msm: add nt35521 driver for skuf

skuf uses nt35521 as panel driver IC, add dts file for it,
which includes initialization code, dsi timing, gpio and
power definitions

Change-Id: Ibf73ceb9ed128305a3eefcfa9bf6a2e216ea51c0
Signed-off-by: Ray Zhang <rayzhang@codeaurora.org>