Merge "Developer option crashed when Bluetooth feature disabled" into main

src/com/android/settings/development/BluetoothMaxConnectedAudioDevicesPreferenceController.java

@@ -45,10 +45,11 @@ public class BluetoothMaxConnectedAudioDevicesPreferenceController extends
         super(context);
 
         final BluetoothManager bluetoothManager = context.getSystemService(BluetoothManager.class);
-
+        if(bluetoothManager != null && bluetoothManager.getAdapter() != null) {
             mDefaultMaxConnectedAudioDevices =
                 bluetoothManager.getAdapter().getMaxConnectedAudioDevices();
         }
+    }
 
     @Override
     public String getPreferenceKey() {