drm/msm/sde: update plane states properly during atomic check

Modify the plane's rotator atomic check code to ensure that
all required fields of the SDE plane rotator structure are
updated for all cases. This prevents the possibility of
stale data from previous commits affecting the current
commit operation.

CRs-Fixed: 2037676
Change-Id: I67393852ee0bd26ddc51d3fb0bdfab2753b71bb2
Signed-off-by: Clarence Ip <cip@codeaurora.org>