Update openstack services to listen on stunnel connect port

If haproxy+stunnel is used, openstack services should not listen
on all addresses (0.0.0.0) but only on address where stunnel is
connected to.

If haproxy is used but stunnel not, services should bind to local-ipv4
address.

Related-to: blueprint tripleo-icehouse-ha-production-configuration

Change-Id: I2aca62a8da61221d67f7a99bc33a6e4ebfa53acd
Merge "Update openstack services to listen on stunnel connect port"