ARM: dts: msm: Enabling dynamic splash on DSI and DP displays (sa8155)

Configure dtsi to enable dynamic splash on both DSI and DP
displays.

Change-Id: Id35080d9b684906a0de8ba486e7f1fb006f8b1c0
Acked-by: Poojashree Masthi <c_pmasth@qti.qualcomm.com>
Signed-off-by: Rahul Sharma <rahsha@codeaurora.org>