alsa_sound: Fix for setFmVolume API changes

Change-Id: Ibf5ed69a304fff320c350ef9827e1858291abf4d
msm8660: Enable support for LPA/Tunnel audio playback

 - based off http://review.cyanogenmod.org/#/c/53196

Change-Id: I12edbf103fe3a5a81451d2b4242bf77342b64ff9

Conflicts:
	msm8660/AudioPolicyManager.cpp