ARM: dts: msm: add default display for SDM855

Add sharp 4k panel dual dsi command mode as default display to
SDM855. Add panel reset gpio and mode select gpio for
sharp 4k panel.

Change-Id: I937f01e4d55f152d00892337ea7985778019850d
Signed-off-by: Shashank Babu Chinta Venkata <sbchin@codeaurora.org>