audio/msm8660: Updates for MR2

  * update for HAL changes

Based on:
  http://review.cyanogenmod.org/46036
  http://review.cyanogenmod.org/46087

Patchset 4: Retain authorship...
Patchset 5: Wrong patchset id
Change-Id: Id661ec2b87b0b79e2a11005180d3169a254e6f66

Conflicts:
	msm8660/AudioPolicyManager.cpp