Screenrecord: allow force mic for audio

Some older devices audio blobs do not support audio submix,
allow those devices to force using the mic for audio while
screenrecording.

Change-Id: Ief3a14e00d0bf32cc131742fb82556621f54be36
AudioTrack: correct typo

Remove the extraneous dash when initializing status

Change-Id: Ie18e380ec6c2c45f88202c860573b583fd2a8129
Merge remote-tracking branch 'omni/android-4.4' into omni-4.4