msm: mdss: send col_page dcs command when frame size changed

When partial update and sync-wait-broadcast enable, col_page
address dcs command are sent to panel on every frame update
which generates unnecessary interrupts and cause frame rate
to dropped. To avoid unnecessary interrupts, col_page address
dcs commands are sent only when frame size changed. Since
sync-wait-broadcast enabled, col_page address of both
left and right dsi controller need to be sent at same
trigger.

CRs-Fixed: 707502
Change-Id: I37b8f78edf4fa75fa4aea9ca5d57ae0efd10b36c
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>