Support rocky version

Change-Id: Ie9439cf50b5dcfb73f63acd1f01c1dcb034358ee
Related-Prod: PROD-23722
diff --git a/metadata/service/compute/ovn/single.yml b/metadata/service/compute/ovn/single.yml
index 1665ac8..187f180 100644
--- a/metadata/service/compute/ovn/single.yml
+++ b/metadata/service/compute/ovn/single.yml
@@ -33,3 +33,5 @@
             enabled: ${_param:openstack_fluentd_handler_enabled}
           ossyslog:
             enabled: ${_param:openstack_ossyslog_handler_enabled}
+      concurrency:
+        lock_path: /var/lock/neutron