am 9eb1a4fc: audio: add support for HDMI and speaker combo device

* commit '9eb1a4fc659f58d196cc8e990da2a3fbf9a1c630':
  audio: add support for HDMI and speaker combo device
tree: 848215b7a99366aba1896b2e7bc2357f97ac00c9
  1. alsa_sound/
  2. libalsa-intf/
  3. Android.mk