msm: rotator: add downscale support in rotator Rotator is capable of performing 1/2, 1/4 and 1/8 down scaling. Add downscale_ratio parameter to provide support for this feature.

CRs-Fixed: 315874
Change-Id: I57dc3456ccc9bec2a125750b3e9909ffcbaf45f6
Signed-off-by: Adrian Salido-Moreno <adrianm@codeaurora.org>
msm: rotator: Fix rotator YCrCb planar formats unexpected output Rotator expects planar input in YCbCr order, wrong color can be seen on ouput image when given YCrCb because the chromninance planes picked are not correct. Swap Cb and Cr plane addresses to output correct image.

Change-Id: Ia05ab704d18da4aac49e63fb805c40a95ea51a33
CRs-Fixed: 327956
Signed-off-by: Adrian Salido-Moreno <adrianm@codeaurora.org>