Audioservice: fix A2dp support on Samsung's Audio Policy HAL.

Samsung's audio policy HAL doesn't handle A2DP delay commands
correctly which was merged in JB.
Adds a nodelaya2dp config option.

Change-Id: I188c6e59fdf1b30bef41d8e1aa84ac5319f3bcc3
Merge remote-tracking branch 'cm/cm-10.1' into cm-10.1-linaro