alsa_sound: Fix for setFmVolume API changes

Change-Id: Ibf5ed69a304fff320c350ef9827e1858291abf4d
Revert "msm8660: update audio policy"

This reverts commit 720cd272840175870b2877740f36fdb4a70caee7.
msm8660: update audio policy

based off http://review.cyanogenmod.org/#/c/52982/

Change-Id: I8fdd2cec421e7b1b715c899c8d10b7a00261a2d4