[VOL-2976] Update OLT Disable-Enable Scenario for ATT and DT

Change-Id: I5e2771042d314fe8f3dff0fa4545ccb4870559e0
diff --git a/tests/dt-workflow/Voltha_DT_PODTests.robot b/tests/dt-workflow/Voltha_DT_PODTests.robot
index f55f34e..ee75763 100644
--- a/tests/dt-workflow/Voltha_DT_PODTests.robot
+++ b/tests/dt-workflow/Voltha_DT_PODTests.robot
@@ -245,8 +245,7 @@
     ...    Assuming that all the ONUs are DHCP/pingable (i.e. assuming sanityDt test was executed)
     ...    Perform disable on the OLT and validate that the pings do not succeed
     ...    Perform enable on the OLT and validate that the pings are successful
-    # TODO: TBD: Verification: "onu_reason" value: omci-flows-pushed OR discovery-mibsync-complete on OLT ReEnable
-    [Tags]    functionalDt    DisableEnableOLTDt    notready
+    [Tags]    functionalDt    DisableEnableOLTDt
     [Setup]    Start Logging    DisableEnableOLTDt
     [Teardown]    Run Keywords    Collect Logs
     ...           AND             Stop Logging    DisableEnableOLTDt
@@ -287,12 +286,8 @@
         ${onu_device_id}=    Get Device ID From SN    ${src['onu']}
         ${onu_port}=    Wait Until Keyword Succeeds    ${timeout}    2s    Get ONU Port in ONOS    ${src['onu']}
         ...    ${of_id}
-
-        ## ******** ##
         Wait Until Keyword Succeeds    ${timeout}    10s    Validate Device    ENABLED    ACTIVE
-        ...    REACHABLE    ${src['onu']}    onu=True    onu_reason=omci-flows-pushed
-        ## ******** ##
-
+        ...    REACHABLE    ${src['onu']}    onu=True    onu_reason=discovery-mibsync-complete
         # Verify that ping works fine again
         Run Keyword If    ${has_dataplane}
         ...    Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    60s    2s
diff --git a/tests/functional/Voltha_PODTests.robot b/tests/functional/Voltha_PODTests.robot
index 77fc1c0..8503aa2 100644
--- a/tests/functional/Voltha_PODTests.robot
+++ b/tests/functional/Voltha_PODTests.robot
@@ -71,7 +71,7 @@
     ...    Assuming that test1 was executed where all the ONUs are authenticated/DHCP/pingable
     ...    Perform disable on the OLT and validate that the pings do not succeed
     ...    Perform enable on the OLT and validate that the pings are successful
-    [Tags]    VOL-2410    DisableEnableOLT    notready
+    [Tags]    functional    VOL-2410    DisableEnableOLT
     [Setup]    Start Logging    DisableEnableOLT
     [Teardown]    Run Keywords    Collect Logs
     ...           AND             Stop Logging    DisableEnableOLT