mdss: clenup, make brightness changess more smooth.

Change-Id: Id048101a2ed188beb0d79a6627529140d66c3883
mm: Update and some fixes from i9506 osrc.

Change-Id: I0ffef1aaaf3b40615f5962514597e689e98fa12a
cpuidle: Fix merge fails.

Change-Id: I34c00baa094ca9e5899e1e7475a7a20573ab7e59