message: Fix command-line parsing for --use_nnapi
diff: @@ -24,7 +24,7 @@ namespace {
  void InitKernelTest(int* argc, char** argv) {
  bool use_nnapi = false;
  std::vector<tflite::Flag> flags = {
  - tflite::Flag::CreateFlag("--use_nnapi", &use_nnapi, "Use NNAPI"),
  + tflite::Flag::CreateFlag("use_nnapi", &use_nnapi, "Use NNAPI"),
  };
  tflite::Flags::Parse(argc, const_cast<const char**>(argv), flags);
  