[VOL-2994] Checking DHCP flows correctly

Change-Id: Ie1bead8bac28b33034e4f49805960dddc0ecc3ad
diff --git a/tests/dt-workflow/Voltha_DT_FailureScenarios.robot b/tests/dt-workflow/Voltha_DT_FailureScenarios.robot
index 6e8a21e..9b9223f 100644
--- a/tests/dt-workflow/Voltha_DT_FailureScenarios.robot
+++ b/tests/dt-workflow/Voltha_DT_FailureScenarios.robot
@@ -90,7 +90,7 @@
         # Verify ONU state in voltha
         Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    5s    Validate Device
         ...    ENABLED    ACTIVE    REACHABLE
-        ...    ${src['onu']}    onu=True    onu_reason=omci-flows-pushed
+        ...    ${src['onu']}    onu=True    onu_reason=discovery-mibsync-complete
         # Verify subscriber access flows are added for the ONU port
         Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    5s
         ...    Verify Subscriber Access Flows Added For ONU DT    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${of_id}