add functional tag rwcore-restart test

Change-Id: Idb18367117d029e6b3eea389c9814a579c307715
diff --git a/tests/functional/Voltha_FailureScenarios.robot b/tests/functional/Voltha_FailureScenarios.robot
index c9cfaa0..ad822ce 100644
--- a/tests/functional/Voltha_FailureScenarios.robot
+++ b/tests/functional/Voltha_FailureScenarios.robot
@@ -225,7 +225,7 @@
     ...    simulate a POD crash. The test then scales the rw-core back to a single instance
     ...    and configures ONOS for access. The test succeeds if the device is able to
     ...    complete the DHCP sequence.
-    [Tags]    bbsim    rwcore-restart
+    [Tags]    functional    rwcore-restart
     [Setup]    Run Keywords    Announce Message    START TEST RwCoreFailAndRestart
     ...        AND             Start Logging    RwCoreFailAndRestart
     ...        AND             Clear All Devices Then Create New Device