audio_policy: Fix volumes for ICS blob compat

Allow usage of the default audio_policy source, even if the primary
audio HAL is an ICS binary blob

Change-Id: I959a925f458e14380c2e5443b1378c4018d9f084
FM Radio: Add support for FM Radio in Android

Change-Id: I887c5182f95631ab88b28684caf97d2e3d909c1e