[ALPS08645061] DISP: adjust dual pipe MMQOS peak BW in ddp_cmdq_cb

[Detail]
Add dual pipe right pipe update avg & peak BW in ddp_cmdq_cb.
To fix MMQOS peak BW raise in atomic_flush, but not shrink
in ddp_cmdq_cb problem.

MTK-Commit-Id: 9eeb543291fff401c36ed1a5f5954671da6cbbd4

CR-Id: ALPS08645061
Feature: display_mobile
Signed-off-by: tai-hua.tseng <tai-hua.tseng@mediatek.com>
Change-Id: I6e554d82c3ceba74e2660b7193c3accea17f93f1