message: Fix EXPAND_DIMS operator property for quantization purposes.
diff: @@ -87,9 +87,10 @@ OperatorProperty GetOperatorProperty(const BuiltinOperator& op) {
  property.version = 2;
  break;
  case BuiltinOperator_EXPAND_DIMS:
  - property.inputs = {{0, {}}, {1, {}}};
  + // We skip input 1 as it is not real valued (it's the index of axis) and
  + // hence does not need to be quantized.
  + property.inputs = {{0, {}}};
  property.outputs = {{0, {}}};
  - property.restrict_same_input_output_scale = true;
  property.version = 1;
  break;
  case BuiltinOperator_FULLY_CONNECTED: {
  