Update to reflect new priorities for A2DP profile.

1. PRIORITY_OFF is when it is unchecked.
2. PRIORITY_ON is when it is checked.
3. PRIORITY_AUTO_CONNECT is when we want to auto connect.

When the box is checked, we want to auto connect,
so set the priority to AUTO_CONNECT.
When the user disconnects, we set the priority back
to PRIORITY_ON.

src/com/android/settings/bluetooth/LocalBluetoothProfileManager.java

@@ -203,7 +203,7 @@ public abstract class LocalBluetoothProfileManager {
         @Override
         public void setPreferred(BluetoothDevice device, boolean preferred) {
             mService.setSinkPriority(device,
-                    preferred ? BluetoothA2dp.PRIORITY_AUTO : BluetoothA2dp.PRIORITY_OFF);
+                    preferred ? BluetoothA2dp.PRIORITY_AUTO_CONNECT : BluetoothA2dp.PRIORITY_OFF);
         }
 
         @Override