[VOL-4267] Re-enabled RestartOpenOnuPingDt and RestartOpenOltPingDt scenarios with some modifications

Change-Id: Ie6098140524c3d2f5a9c9720e743b47d7824c480
diff --git a/tests/dt-workflow/Voltha_DT_FailureScenarios.robot b/tests/dt-workflow/Voltha_DT_FailureScenarios.robot
index 5233544..4f9ce58 100755
--- a/tests/dt-workflow/Voltha_DT_FailureScenarios.robot
+++ b/tests/dt-workflow/Voltha_DT_FailureScenarios.robot
@@ -562,7 +562,7 @@
     [Documentation]    Restart openonu-adapter container after VOLTHA is operational.
     ...    Run the ping continuously in background during container restart,
     ...    and verify that there should be no affect on the dataplane.
-    [Tags]    functionalDt    RestartOpenOnuPingDt    non-critical    notready
+    [Tags]    functionalDt    RestartOpenOnuPingDt    non-critical
     [Setup]    Start Logging    RestartOpenOnuPingDt
     [Teardown]    Run Keywords    Run Keyword If    ${logging}    Collect Logs
     ...           AND             Stop Logging    RestartOpenOnuPingDt
@@ -615,7 +615,7 @@
     [Documentation]    Restart openolt-adapter container after VOLTHA is operational.
     ...    Run the ping continuously in background during container restart,
     ...    and verify that there should be no affect on the dataplane.
-    [Tags]    functionalDt    RestartOpenOltPingDt    non-critical    notready
+    [Tags]    functionalDt    RestartOpenOltPingDt    non-critical
     [Setup]    Start Logging    RestartOpenOltPingDt
     [Teardown]    Run Keywords    Run Keyword If    ${logging}    Collect Logs
     ...           AND             Stop Logging    RestartOpenOltPingDt