Add vrrp check script for Keepalived on DBS nodes

Change-Id: Iad51dc7aebc5704a7870d4b3451cbb4d8fddb4bd
Related-bug: PROD-24012
diff --git a/defaults/keepalived/init.yml b/defaults/keepalived/init.yml
index f39d80e..6d457e5 100644
--- a/defaults/keepalived/init.yml
+++ b/defaults/keepalived/init.yml
@@ -1,3 +1,4 @@
 parameters:
   _param:
     keepalived_openstack_web_vrrp_script_check_pidof_args: "nginx"
+    keepalived_galera_vrrp_script_check_pidof_args: "/usr/sbin/haproxy"