ARM: dts: msm: add dp dt node for shima target

Add the DP DT node for Shima target.
DP SST POR resolution of 4K@60 can be supported
without DSC and widebus support. So, the support
for DSC, FEC and widebus is not required.

Change-Id: Ife3e4806fd116fce3eb1709fd8c73f03446b074c