msm: mdp: Adjust bandwidth parameters 720p video on 1080p panel have …
…upscaling, mdp clk should not be increased for this case. Also slightly increase mdp ib to make sure there is no bw access bottleneck.

Signed-off-by: Huaibin Yang <huaibiny@codeaurora.org>
Signed-off-by: naseer <naseer@codeaurora.org>