Enable fluentd for horizon

Related-Prod: PROD-15413

Change-Id: Iddaa9b6fcad24a2e5e12e59b704685cd85d46866
diff --git a/metadata/service/support.yml b/metadata/service/support.yml
index eb376da..95413b2 100644
--- a/metadata/service/support.yml
+++ b/metadata/service/support.yml
@@ -3,6 +3,8 @@
     _support:
       collectd:
         enabled: false
+      fluentd:
+        enabled: true
       heka:
         enabled: true
       sensu: