sdm: update panel info immediately after setting display mode

MDP clocks are different between video mode and command mode,
and MDP clocks are calculated and validated in display prepare
stage.
So the panel info needs to be updated immediately for calculation
MDP clocks correctly.
Add IDLE_NOTIFY event in cmd mode for panel operating mode
switch feature.

Change-Id: If9be98078504d66757c32f6159d82799a2e39565
2 files changed