msm-fb: display: Fix for the green patch issue in rotation cases

always programming the tile_size register has side affect in
rotation case. the issue is fixed by programming the tile_size
register only in case of tile buffer

Change-Id: I7de739c8523786837b975e8ff4116ee5835c7f24
Signed-off-by: Nagamalleswararao Ganji <nganji@codeaurora.org>