Replaced underscores with hyphens in cluster names and domains

Change-Id: I90d163602a0915b23f25f9f4d799799c0336e664
diff --git a/classes/cluster/sl-os-ovs/infra/init.yml b/classes/cluster/sl-os-ovs/infra/init.yml
index a482086..b774ff8 100644
--- a/classes/cluster/sl-os-ovs/infra/init.yml
+++ b/classes/cluster/sl-os-ovs/infra/init.yml
@@ -1,7 +1,7 @@
 parameters:
   _param:
     cluster_domain: sl-os-ovs.local
-    cluster_name: sl_os_ovs
+    cluster_name: sl-os-ovs
     infra_config_deploy_address: 192.168.10.90
     infra_config_address: 172.16.10.100
   linux: