[Go Datafacotry] use direcitve to mitigate go sdk breaking (#20614)

Author: Alancere

specification/datafactory/resource-manager/readme.go.md

@@ -15,6 +15,12 @@ module-name: sdk/resourcemanager/datafactory/armdatafactory
 module: github.com/Azure/azure-sdk-for-go/$(module-name)
 output-folder: $(go-sdk-folder)/$(module-name)
 azure-arm: true
+directive:
+  - from: swagger-document
+    where: $.definitions.LinkedServiceReference.properties.type
+    debug: true
+    transform: >
+      $["x-ms-enum"].name = "LinkedServiceReferenceType"
 ```
 
 ### Go multi-api