drm/msm: fix compilation issues for "msm" on 4.9

The "msm/sde" driver is porting from "4.4" kernel
to "4.9". The "msm/sde" compilation is failing on
on this kernel branch due to upstream changes. This
patch fixes all compilation issues due to upstream
API changes, mdp4/5 driver changes, driver probe
changes, etc.

Change-Id: Id76a31ea9fa7c06c63a5eaa78e69642b938cb4bf
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>