Fix listen_on_master_ip_only
Fix listen_on_master_ip_only

https://review.opendev.org/#/c/668902/ had
wrongly set the value of listen_on_master_ip_only,
it should to be 'no' when external lb VIP is used else
'yes'.

Depends-On: https://review.opendev.org/#/c/709389/
Closes-Bug: #1864409
Change-Id: I25b9366f8a097bda89734cc27fe83b94de24507e

openstack/tripleo-heat-templates,openstack/tripleo-heat-templates