[SEBA-843] Storing PortNo in the ONU Device struct so that it can be passed with the packetIndications

Change-Id: I28e0bf5721d11fc52d70c6072a6cf70586ba5f98
diff --git a/internal/bbsim/devices/messageTypes.go b/internal/bbsim/devices/messageTypes.go
index 6d3f076..fe6abef 100644
--- a/internal/bbsim/devices/messageTypes.go
+++ b/internal/bbsim/devices/messageTypes.go
@@ -75,7 +75,7 @@
 
 type OnuDiscIndicationMessage struct {
 	OperState OperState
-	Onu       Onu
+	Onu       *Onu
 }
 
 type OnuIndicationMessage struct {