message: Shape validation of `max_features` in `QuantizedReluX`
  In shape function of QuantizedReluX, `max_value` and
  `min_features` have shape validation but not `max_features`.
  This fix add restriction to `max_features` as well.
diff: @@ -1452,6 +1452,7 @@ REGISTER_OP("QuantizedReluX")
  ShapeHandle unused;
  TF_RETURN_IF_ERROR(c->WithRank(c->input(1), 0, &unused));
  TF_RETURN_IF_ERROR(c->WithRank(c->input(2), 0, &unused));
  + TF_RETURN_IF_ERROR(c->WithRank(c->input(3), 0, &unused));
  c->set_output(1, c->Scalar());
  c->set_output(2, c->Scalar());
  return Status::OK();
  