fix scanner

Change-Id: Ieecb93a66619a2cf3816b5da87cb830696cb9be5
diff --git a/classes/cluster/virtual-mcp-ocata-ovs/infra/config.yml b/classes/cluster/virtual-mcp-ocata-ovs/infra/config.yml
index a719b3e..8fb67fd 100644
--- a/classes/cluster/virtual-mcp-ocata-ovs/infra/config.yml
+++ b/classes/cluster/virtual-mcp-ocata-ovs/infra/config.yml
@@ -166,4 +166,5 @@
           classes:
           - system.influxdb.server.single
           - system.influxdb.database.stacklight
+          params:
             linux_system_codename: xenial