msm: mdss: program MDP QOS settings for 8909

Program MDP QOS re-mapper related settings for
8909 platform and also update the calculation of
ab and ib for DMA based on honest bus scale voting.

Change-Id: I593bed0906721d2ab32d02d72ba1a046a7866757
Signed-off-by: Sandeep Panda <spanda@codeaurora.org>