ARM: dts: msm: fix support for DSC panels on SDM845

Truly 2.5K panel in the DSC mode works on a single port configuration
using the DSI1 control path whereas the Sharp 4K DSC panel works on a
dual port configuration using DSI0 and DSI1 control path. Fix these
configuration details for SDM845 CDP, MTP and QRD boards

Change-Id: I83d930b0ee92b1added702a6e5ca6c72b4510a0f
Signed-off-by: Vara Reddy <varar@codeaurora.org>