Merge changes Ic94c18a6,Iff770de1,Ifed6b4dc

* changes:
  libstagefright: enable tegra hw audio decoders
  libstagefright: Enable tegra hw video decoders
  libstagefright: Enable tegra hw encoder
tree: a3fe8ed682d6ae52a5fd17b2f49d97b68852f0c5
  1. camera/
  2. cmds/
  3. include/
  4. media/
  5. services/