Adding in the device identifier for android

Author: bassrock

Controller/DeviceController.php

@@ -156,6 +156,7 @@ public function registerGCMRegistrationIDAction(ParamFetcher $paramFetcher) {
         }
 
         $device->setDeviceModel($deviceModel);
+        $device->setDeviceIdentifier($deviceIdentifier);
         $device->setDeviceName($deviceName);
         $device->setDeviceVersion($deviceVersion);
         $device->setDeviceToken($deviceToken);