msm: mdss: fixes after merge.

Change-Id: Idff7f62887355a3d5a7988d0076b6c42c4008676
Revert "msm: vidc: avoid setting smoothstreaming for Q6"

This reverts commit 128bf33fa0f253ca619db8f355e312a4cd4536e5.

Change-Id: I37fe69a8e390f54d367807b8c87ca6f954290dfc