drm/msm/sde: align bandwidth/clock updates with frame done

Align clock and bandwidth updates witf frame done event for
video mode panels.

Also move perf state update to atomic check to make perf data
persistent over state duplication.

Change-Id: I5ef02dd78ce6a62cf49f1f105344764fdb3a24da
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>