Fix HA UP4 control plane test

Change-Id: I3fa058798f4b94dd21e4c0682954b42ca8b968dc
diff --git a/TestON/tests/USECASE/SegmentRouting/UP4/UP4.py b/TestON/tests/USECASE/SegmentRouting/UP4/UP4.py
index 17925e8..cc3ed10 100644
--- a/TestON/tests/USECASE/SegmentRouting/UP4/UP4.py
+++ b/TestON/tests/USECASE/SegmentRouting/UP4/UP4.py
@@ -529,7 +529,7 @@
 
         main.step("Cleanup PDRs and FARs via UP4 on ONOS 1")
         up4_1.detachUes()
-        up4_1.verifyNoUesFlow(onos_cli_2)
+        up4_1.verifyNoUesFlow(onos_cli_1)
         up4_1.teardown()
 
         run.cleanup(main)