add xms-ids for mysql (#17884)

Author: LinglingTong

specification/mysql/resource-manager/Microsoft.DBforMySQL/stable/2017-12-01/mysql.json

@@ -2540,6 +2540,9 @@
           "items": {
             "$ref": "#/definitions/Operation"
           },
+          "x-ms-identifiers": [
+            "name"
+          ],
           "description": "The list of resource provider operations."
         }
       },