Fix mass storage in recovery

The proper order is mass_storage,adb. Some systems cannot recognize
the mass storage otherwise.

Change-Id: I7e240210adef52de70776353a3426e3fc3f1b5bc
recovery: add overlay interface for recovery mode

Pan display needs FB allocation from driver and
since it is removed from driver, switching to overlay
interfaces in recovery mode. Basically forking out
the overlay and pan_display path in separate files.

Change-Id: I60f13e54befaa6da77e6c4d23399835509b41333
recovery: Add support for split display

Configure LEFT and RIGHT mixer separately
to drive high resolution display.

Change-Id: I3a3e6bffe6373caa991d9847dae6f2f4d8d20c48