drm/msm/sde: update bandwidth/clock at frame done event

The current bandwidth & clock logic lowers clock &
bandwidth when parameters are not updated. However, this
function is not invoked at frame done when parameters are
not changing. Add call to update bandwidth & clock at
frame done event time for video mode panel.

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

CRs-Fixed: 2009714
Change-Id: I9f981e902ddf3ecbcd99cb2ab2bd0d85e7f6bdda
Signed-off-by: Alan Kwong <akwong@codeaurora.org>