adding s_tag to att subscriber

Change-Id: I862503cf0077305f67714a7440b862a1c2113a99
diff --git a/src/test/cord-api/Tests/WorkflowValidations/data/ATTSubscriber.json b/src/test/cord-api/Tests/WorkflowValidations/data/ATTSubscriber.json
index b2c1580..a27e9bc 100644
--- a/src/test/cord-api/Tests/WorkflowValidations/data/ATTSubscriber.json
+++ b/src/test/cord-api/Tests/WorkflowValidations/data/ATTSubscriber.json
@@ -2,6 +2,7 @@
     "SubscriberInfo" : [
      {
             "name": "My House-305",
+            "s_tag": 111,
             "c_tag": 999,
             "onu_device": "ALPHe3d1cfa7",
             "nas_port_id": "PON 1/1/03/1:1.1.1",