audio: Initial bring up of QCOM added audio feature.

- Update alsa_sound and libalsa-intf to JB mainline
- Use audio channel, format, and mode definitions
  from system/core instead of libhardware_legacy
- Enable AudioPolicyManagerALSA as QCOM's customized
  audio policy manager
- Enable QCOM audio features including: proxy, USB
  audio, and  ANC.

Change-Id: Ia9f0a8024a3f3e1d28210687aecfc72e6b784941
30 files changed
tree: a526bbb7812b19d2f828cef27859b48a2f2ee0a0
  1. alsa_sound/
  2. libalsa-intf/