logging logical device info in atests

Change-Id: I24ffedecc8a8b483817c21909f17cd7c13573bdc
diff --git a/tests/atests/common/auto_test.py b/tests/atests/common/auto_test.py
index 2721923..308ec04 100755
--- a/tests/atests/common/auto_test.py
+++ b/tests/atests/common/auto_test.py
@@ -74,7 +74,7 @@
 
     preprovisioning.runTest('olt.voltha.svc', 50060, 'ponsim_olt', 'ponsim_onu', LOG_DIR)
     
-    discovery.runTest('ponsim_olt', 'ponsim_onu', LOG_DIR)
+    discovery.runTest('olt.voltha.svc', 'ponsim_olt', 'ponsim_onu', LOG_DIR)
 
     authentication.runTest(ROOT_DIR, VOLTHA_DIR, LOG_DIR)