audio: Add support for offloading MPEG2 and WMA

Change-Id: I75afa455537cc8aaecd5d5a36ffda9e62785c723
audio: Always offload audio for AV

Change-Id: I88ba026c9733cdd7e31a5771f3d82bfc1cf37597
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_hardware_qcom_audio-caf into kitkat