audio/msm7x30: Updates for MR2

* Update for HAL changes

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

Patchset 2: Retain authorship...

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: Ic747df7bb38b38a7100a5663eac26f2142c02ef8