message: make --nnapi_accelerator_name work in kernel test
diff: @@ -31,8 +31,12 @@ void InitKernelTest(int* argc, char** argv) {
  // In Android Q, the NNAPI delegate avoids delegation if the only device
  // is the reference CPU. However, for testing purposes, we still want
  // delegation coverage, so force use of this reference path.
  + const auto opt_name = "nnapi_accelerator_name";
  + std::string accelerator_name =
  + delegate_providers->ConstParams().Get<std::string>(opt_name);
  delegate_providers->MutableParams()->Set<std::string>(
  - "nnapi_accelerator_name", "nnapi-reference");
  + opt_name, accelerator_name.empty() ? "nnapi-reference"
  + : accelerator_name.c_str());
  }
  }
  