audio-caf: resurrect msm8660 audio

  * based on http://review.cyanogenmod.org/#/c/53023/ which was
    based on http://review.cyanogenmod.org/#/c/52982/

Change-Id: I7369d744282f384d6a9ed78f1b14efad7eb0d567
audio: msm8660: Update references to AUDIO_FORMAT

* We should use AUDIO_FORMAT_XXXXX instead of AudioSystem::XXXXX
  definitions.

Change-Id: Idb56bc07f8950cb2f1280f4e0db87fd494782c34
legacy/msm8660: Enable support for LPA/Tunnel audio playback

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

Change-Id: I12edbf103fe3a5a81451d2b4242bf77342b64ff9
audio-caf: Import 7x30 audio

Change-Id: Iaa4912ca4dad659e679d982064d2ba23abb42e61