Ensure rhosp-release is installed post-upgrade
Ensure rhosp-release is installed post-upgrade

The rhosp-release package provides information used in CI
to easily determine the release of OSP installed. During
the 13->16.x upgrade it gets uninstalled by leapp, so in
this patch we ensure that it is reinstalled after the OS
upgrade and after the repositories are setup.

Related-Bug: rhbz#1876047

Change-Id: I44ca5c78d3fd073c02d451c20adf23f7b45f2336

redhat-openstack/infrared,redhat-openstack/infrared,redhat-openstack/infrared