message: [tf.data] Register the `OptimizeDataset` kernel for the `OptimizeDatasetV2` op in the
  mobile pass-thru implementation.
diff: @@ -32,6 +32,8 @@ class OptimizeDatasetOp : public UnaryDatasetOpKernel {
  namespace {
  REGISTER_KERNEL_BUILDER(Name("OptimizeDataset").Device(DEVICE_CPU),
  OptimizeDatasetOp);
  +REGISTER_KERNEL_BUILDER(Name("OptimizeDatasetV2").Device(DEVICE_CPU),
  + OptimizeDatasetOp);
  } // namespace
  } // namespace data
  } // namespace tensorflow
  