[VOL-1505]  This update enables the core to add a key when
publishing an event onto kafka.   The corresponding update is
done in the adapter GO components.   Similar changes remain to
be done in pyvoltha.

Change-Id: I0bb1e3cb8c2fa9e0214f96d863819755d34a0bb9
diff --git a/adapters/common/adapter_proxy.go b/adapters/common/adapter_proxy.go
index 4e63442..5e04484 100644
--- a/adapters/common/adapter_proxy.go
+++ b/adapters/common/adapter_proxy.go
@@ -90,7 +90,7 @@
 	replyToTopic := kafka.Topic{Name: toAdapter}
 	rpc := "Process_inter_adapter_message"
 
-	success, result := ap.kafkaICProxy.InvokeRPC(ctx, rpc, &topic, &replyToTopic, true, args...)
+	success, result := ap.kafkaICProxy.InvokeRPC(ctx, rpc, &topic, &replyToTopic, true, proxyDeviceId, args...)
 	log.Debugw("inter-adapter-msg-response", log.Fields{"replyTopic": replyToTopic, "success": success})
 	return unPackResponse(rpc, "", success, result)
 }