[CORD-2909] Flatten and parameterize charts

Change-Id: I695c1df063b0f6f6ccf280254d54cc701292348f
diff --git a/xos-services/onos-service/templates/configmap.yaml b/xos-services/onos-service/templates/configmap.yaml
index 226f926..db13dd3 100644
--- a/xos-services/onos-service/templates/configmap.yaml
+++ b/xos-services/onos-service/templates/configmap.yaml
@@ -1,5 +1,4 @@
 ---
-
 # Copyright 2018-present Open Networking Foundation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -20,4 +19,4 @@
   name: onos-service
 data:
   serviceConfig: |
-{{ toYaml .Values.serviceConfig | indent 4 }}
+{{ include "onos-service.serviceConfig" . | indent 4 }}