engine configurable: AUDIO_SOURCE_UNPROCESSED aligment with legacy am: c51e05b671
am: 921ba4e6eb

* commit '921ba4e6ebe906cd6173348c07533ade3b67554c':
  engine configurable: AUDIO_SOURCE_UNPROCESSED aligment with legacy

Change-Id: Iff9ba871e1003cc623c1cb5408133db0597833e3