Adding xms ids to Azure Arc Data (#17648)

Author: agalerrotaru

specification/azurearcdata/resource-manager/Microsoft.AzureArcData/stable/2021-11-01/common.json

@@ -68,6 +68,10 @@
           "items": {
             "$ref": "#/definitions/ErrorResponseBody"
           },
+          "x-ms-identifiers": [
+            "message",
+            "target"
+          ],
           "description": "A list of additional details about the error."
         }
       },

specification/azurearcdata/resource-manager/Microsoft.AzureArcData/stable/2021-11-01/operations.json

@@ -62,6 +62,9 @@
           "items": {
             "$ref": "#/definitions/Operation"
           },
+          "x-ms-identifiers": [
+            "name"
+          ],
           "readOnly": true
         },
         "nextLink": {