msm: mdss: controller cleanup on panel resolution change

Cleanup MDP controller and mixer setup in case panel resolution
has changed. The obsolete resolution settings need to be cleaned
and setup with new resolution data for proper display.

Change-Id: I8df3c19cb5e872e05a585ed0d4df2e5c4d0c9624
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>