Fix log_collector in StackLight models

Change-Id: I7be3a7d42e34682e875e337ea16829af66802acb
diff --git a/classes/cluster/sl_os_ovs/stacklight/client.yml b/classes/cluster/sl_os_ovs/stacklight/client.yml
index 9d5bb82..584012d 100644
--- a/classes/cluster/sl_os_ovs/stacklight/client.yml
+++ b/classes/cluster/sl_os_ovs/stacklight/client.yml
@@ -3,8 +3,6 @@
 - system.grafana.client
 - system.grafana.client.datasource.prometheus
 - system.kibana.client.single
-- system.heka.log_collector.single
-- system.heka.log_collector.output.telegraf
 - cluster.sl_os_ovs
 parameters:
   _param:
diff --git a/classes/cluster/sl_os_ovs/stacklight/init.yml b/classes/cluster/sl_os_ovs/stacklight/init.yml
index 86b0dc3..3e56adb 100644
--- a/classes/cluster/sl_os_ovs/stacklight/init.yml
+++ b/classes/cluster/sl_os_ovs/stacklight/init.yml
@@ -1,5 +1,8 @@
 classes:
+- service.grafana.collector
 - system.linux.system.repo.mcp.extra
+- system.heka.log_collector.single
+- system.heka.log_collector.output.telegraf
 - system.prometheus.collector
 - system.telegraf.agent
 parameters: