Add Grafana dashboard for Prometheus

Change-Id: I684495c1eb7dd2cd68a3c568f4c891e64a3a8c66
diff --git a/metadata/service/support.yml b/metadata/service/support.yml
index e5afb0d..6c46630 100644
--- a/metadata/service/support.yml
+++ b/metadata/service/support.yml
@@ -13,3 +13,5 @@
         enabled: true
       prometheus:
         enabled: true
+      grafana:
+        enabled: true