message: Set KEY_DUMP_EXEC_GRAPH_AS_DOT only for CPU plugin
  Set plugin config KEY_DUMP_EXEC_GRAPH_AS_DOT only for CPU plugin as it is not supported by other plugins.
diff: @@ -135,9 +135,11 @@ Executable::Executable(shared_ptr<Function> func, string device)
  auto& name = m_function->get_friendly_name();
  m_network.serialize(name + ".xml", name + ".bin");
  util::DumpNGGraph(func, name + "_executable");
  + if (m_device == "CPU") {
  options[InferenceEngine::PluginConfigParams::KEY_DUMP_EXEC_GRAPH_AS_DOT] =
  name + "_IE_" + m_device;
  }
  + }
  NGRAPH_VLOG(2) << "Loading IE CNN network to device " << m_device;
  