Reset dhcp_state to AWAITING

Change-Id: I86327394969774a44b5ecb0aff02bf0f551755dc
diff --git a/xos/synchronizer/model_policies/model_policy_att_workflow_driver_serviceinstance.py b/xos/synchronizer/model_policies/model_policy_att_workflow_driver_serviceinstance.py
index 3cc1f59..5464685 100644
--- a/xos/synchronizer/model_policies/model_policy_att_workflow_driver_serviceinstance.py
+++ b/xos/synchronizer/model_policies/model_policy_att_workflow_driver_serviceinstance.py
@@ -58,7 +58,7 @@
         if si.authentication_state in ["AWAITING", "REQUESTED", "STARTED"]:
             si.ip_address = ""
             si.mac_address = ""
-            si.dhcp_state = ""
+            si.dhcp_state = "AWAITING"
 
         si.save_changed_fields()