msm: rotator: Add YV12 support in the Rotator

Added changes to support YV12 input format in the Rotator.
Output will be Pseudoplanar in this case.

Change-Id: Ic77ad2b6a3aaa66ad923494fb6c96e07738d674b
Signed-off-by: Pradeep Jilagam <pjilagam@codeaurora.org>