msm: mdss: program the correct MDP_STREAM_CTRL/TOTAL parameters

While coming out of static screen on command mode panels, we
initialize the DSI host as part of DSI clock control. When partial
update is enabled, we need to program the correct ROI parameters
to DSI controller. Otherwise, issues will be seen if the first
update after the static screen has same ROI parameters as the last
update before static screen. Hence, update the existing ROI
parameters properly to MDP_STREAM_CTRL and MDP_STREAM_TOTAL
registers.

Change-Id: Id6ec179e42592bc4fbaa85d45ad4459036a4faf3
Signed-off-by: Padmanabhan Komanduru <pkomandu@codeaurora.org>