Fix for Multi-OLT TC tags

Change-Id: I1fd1dfffc0b0e4b6ea0c2d0d60cc9969c962e415
diff --git a/tests/dt-workflow/Voltha_DT_MultiOLT_Tests.robot b/tests/dt-workflow/Voltha_DT_MultiOLT_Tests.robot
index 497aa9e..71559f2 100644
--- a/tests/dt-workflow/Voltha_DT_MultiOLT_Tests.robot
+++ b/tests/dt-workflow/Voltha_DT_MultiOLT_Tests.robot
@@ -62,7 +62,7 @@
     ...    Test runs when more than one OLT exists
     ...    Only one OLT is rebooted in the test, while verifying if the ONUs on the
     ...    the other ONUs are still functional
-    [Tags]    functionalDt   MultiOltRebootDt
+    [Tags]    functionalDt   MultiOLTPhysicalRebootDt
     [Setup]    Start Logging    MultiOlt_Physical_Dt
     [Teardown]    Run Keywords    Collect Logs
     ...           AND             Stop Logging    MultiOlt_Physical_Dt