Adjust stacklight influxdb retention

Change-Id: I560bf41b56e4d2dd51f1b04435c040d4d2f20657
diff --git a/influxdb/client/database/ceilometer.yml b/influxdb/client/database/ceilometer.yml
index 52aebae..88d6a07 100644
--- a/influxdb/client/database/ceilometer.yml
+++ b/influxdb/client/database/ceilometer.yml
@@ -8,7 +8,7 @@
           enabled: true
           name: ceilometer
           retention_policy:
-            - name: ceilometer_default
+            - name: ceilometer
               is_default: true
               duration: ${_param:influxdb_ceilometer_rp_duration}
               replication: 1