msm_fb: display: Add support to YCBYCR MDP format

Add support of MDP_YCBYCR_H2V1 interleaved YUV format to MDP
for a-family targets.

Change-Id: I5afb84a95693d1ced114152364782a10c4d56bc2
Signed-off-by: Mayank Chopra <makchopra@codeaurora.org>