Add support loggin configuration for gnocchi

Add support fluent.conf for gnocchi.
we dont add ossyslog_handler
because oslo.log not supported for gnocchi

Change-Id: I1220cadc4caa9d275ac4e9e2c3b3e5ee35441e52
Related-Prod: PROD-19781
diff --git a/metadata/service/support.yml b/metadata/service/support.yml
index 002c442..9fb25fa 100644
--- a/metadata/service/support.yml
+++ b/metadata/service/support.yml
@@ -9,3 +9,5 @@
         enabled: false
       sphinx:
         enabled: true
+      fluentd:
+        enabled: true