Notify adapter state change from off to on when disable fails

So that the settings app would not stuck at turning-off state
User can retry turning off.
bug 9164641

Change-Id: I6ae6d80c97673b4e548b7b5ab47c51f968342060
diff --git a/src/com/android/bluetooth/btservice/AdapterState.java b/src/com/android/bluetooth/btservice/AdapterState.java
index 5f3d485..5f9c30b 100755
--- a/src/com/android/bluetooth/btservice/AdapterState.java
+++ b/src/com/android/bluetooth/btservice/AdapterState.java
@@ -345,6 +345,7 @@
                     errorLog("Error disabling Bluetooth");
                     mPendingCommandState.setTurningOff(false);
                     transitionTo(mOnState);
+                    notifyAdapterStateChange(BluetoothAdapter.STATE_ON);
                     break;
                 default:
                     if (DBG) Log.d(TAG,"ERROR: UNEXPECTED MESSAGE: CURRENT_STATE=PENDING, MESSAGE = " + msg.what );