Update device_id for Flex OLT

Change-Id: I964cd2959f8adc9a6329522eb4672e771641f773
diff --git a/src/test/cord-api/Tests/WorkflowValidations/data/flex-pod1-olt/ATTWhiteList.json b/src/test/cord-api/Tests/WorkflowValidations/data/flex-pod1-olt/ATTWhiteList.json
index 3e7e6f6..bd0cf5d 100644
--- a/src/test/cord-api/Tests/WorkflowValidations/data/flex-pod1-olt/ATTWhiteList.json
+++ b/src/test/cord-api/Tests/WorkflowValidations/data/flex-pod1-olt/ATTWhiteList.json
@@ -2,7 +2,7 @@
     "AttWhiteListInfo" : [
     {
             "serial_number": "ALPHe3d1cfa7",
-            "device_id" : "of:000000000ac004da",
+            "device_id" : "of:000000000ac004ce",
             "pon_port_id" : 536870912,
             "owner_id" : "1"
     }