drm/msm/sde: support partial update for dual dsc config

Add support for programming partial update of DSC panel based
on requested region of interest for dual LM, dual DSC, dual
interface topology.

Change-Id: Ia378aadb181cd45de18637d409dfd1717c054722
Signed-off-by: Lloyd Atkinson <latkinso@codeaurora.org>