ARM: dts: msm: add ssd2080m driver for skug

skug uses ssd2080m as panel driver IC, add dts file for it,
which includes initialization code, dsi timing, gpio and
power definitions

Change-Id: I0563c9f106b9d9b393632679517f77ec78583955
Signed-off-by: Ray Zhang <rayzhang@codeaurora.org>