update call recording file format

Change-Id: I0534c1da11d946a078febc5efade8beb8d3dface
Dialer: Force media scanner to scan file when recording finishes

Change-Id: Ibe6e7f8685c9506af032c9f6654130ef6cc55cdd
Merge remote-tracking branch 'cm/cm-11.0' into kitkat