Change the way to set attributes for grad op maker (#44514)

* fix typos in template for codegen of operators
* change the way to set attributes for grad op maker

paddle/phi/api/yaml/generator/templates/operator_utils.c.j2

@@ -333,6 +333,7 @@ class {{name | to_pascal_case}}OpMaker : public framework::SingleGradOpMaker<T>
       forward_output_orig_names)}});
   {% endfor %}
 
+  grad_op->SetAttrMap(this->Attrs());
   {% for attr in api["attrs"] %}
     {% set attr_name = attr["name"] %}
     {% if attr_name in forward_attr_names %}
@@ -342,7 +343,6 @@ class {{name | to_pascal_case}}OpMaker : public framework::SingleGradOpMaker<T>
       {% elif attr["typename"] == "Scalar" %}
     grad_op->SetInput("{{attr_name | to_pascal_case}}Tensor", this->Input("{{attr_name | to_pascal_case}}Tensor"));
       {% endif %}
-    grad_op->SetAttr("{{attr_name}}", this->GetAttr("{{forward_attr_orig_names[forward_attr_names.index(attr_name)]}}"));
     {% else %}{# maybe something wrong: backward op has more attrs than the forward one#}
     grad_op->AddAttr<{{attr["typename"] | to_op_attr_type}}>({{attr_name}}, "({{attr["typename"] | to_op_attr_type}}), exceptional attr {{attr_name}}");
     grad_op->SetAttr("{{attr_name}}", {{process_default_value(attr)}});