message: Fix ENet test with OpenVINO 2020.2
diff: @@ -2100,7 +2100,11 @@ struct Net::Impl
  auto ieInpNode = inputNodes[i].dynamicCast<InfEngineNgraphNode>();
  CV_Assert(oid < ieInpNode->node->get_output_size());
  +#if INF_ENGINE_VER_MAJOR_GT(2020020000)
  + inputNodes[i] = Ptr<BackendNode>(new InfEngineNgraphNode(ieInpNode->node->get_output_as_single_output_node(oid)));
  +#else
  inputNodes[i] = Ptr<BackendNode>(new InfEngineNgraphNode(ieInpNode->node->get_output_as_single_output_node(oid, false)));
  +#endif
  }
  if (layer->supportBackend(preferableBackend))
  