am ff94720b: Merge change I80a6a229 into eclair

Merge commit 'ff94720b8bf9f83f326197cb0cb27576168e9448' into eclair-plus-aosp

* commit 'ff94720b8bf9f83f326197cb0cb27576168e9448':
  Fix issue 2174002: After rejecting Call when device ringtone is mute and playing music, audio is not transfered to BT device.