sdm: Set crtc mode on every validate/commit.

Change of display mode does not take effect as atomic request pointer
is being recreated on every validate/commit which resets crtc mode.
Set CRTC mode on every validate/commit to fix it.

Change-Id: Iab1fd6b12addf05116f68b54162cdb55e8197ef1
CRs-Fixed: 2105316
2 files changed