Ability to set lock_path

PROD-34037

Change-Id: I9589d06dff5634afe08402576ecf27573310ee7b
diff --git a/metadata/service/common/cluster.yml b/metadata/service/common/cluster.yml
index 0f4a72a..9788b2a 100644
--- a/metadata/service/common/cluster.yml
+++ b/metadata/service/common/cluster.yml
@@ -8,6 +8,8 @@
   manila:
     common:
       version: ${_param:openstack_version}
+      concurrency:
+        lock_path: '/var/lock/manila'
       message_queue:
         engine: rabbitmq
         port: 5672