Point grafana DS to prometheus-relay

Add prometheus relay docker image address

Change-Id: Id1c7800c31b7e4f25684825ba14c91afc573da0c
diff --git a/classes/cluster/virtual-mcp-ocata-dvr/stacklight/client.yml b/classes/cluster/virtual-mcp-ocata-dvr/stacklight/client.yml
index a8f20a4..dd8fe4b 100644
--- a/classes/cluster/virtual-mcp-ocata-dvr/stacklight/client.yml
+++ b/classes/cluster/virtual-mcp-ocata-dvr/stacklight/client.yml
@@ -15,8 +15,8 @@
     grafana_user: admin
     grafana_password: ${_param:grafana_admin_password}
     grafana_prometheus_address: ${_param:stacklight_monitor_address}
-    grafana_prometheus_port: 15010
+    grafana_prometheus_port: 15016
 
     cluster_node01_address: ${_param:stacklight_monitor_node01_address}
     cluster_node02_address: ${_param:stacklight_monitor_node02_address}
-    cluster_node03_address: ${_param:stacklight_monitor_node03_address}
\ No newline at end of file
+    cluster_node03_address: ${_param:stacklight_monitor_node03_address}