Enable support for telegraf

Change-Id: I672a27e1a9689f4a7d04417fdb004dc5a3d55aae
diff --git a/metadata/service/support.yml b/metadata/service/support.yml
index 15dda59..27889ff 100644
--- a/metadata/service/support.yml
+++ b/metadata/service/support.yml
@@ -13,3 +13,5 @@
         enabled: true
       grafana:
         enabled: true
+      telegraf:
+        enabled: true