am 7a492a9a: am b7a76e84: am a482d83c: Merge "Issue 4157048: mic gain for VoIP/SIP calls." into gingerbread

* commit '7a492a9ad42947a3a7b777b0eb6eec56f5bb942b':
  Issue 4157048: mic gain for VoIP/SIP calls.