Add upgrade_tasks for HAproxy
Add upgrade_tasks for HAproxy

Include the tasks that are necessary when upgrading a non-containerized
undercloud to a containerized undercloud for example.

Change-Id: I1e281711f1543659e7ec043747857b756beda3e1

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