Description of problem:
Upgrade of Openstack 7.3 -> 8.0 Error: rhel-7-server-openstack-8.0-rpms is not a valid repository ID


Version-Release number of selected component (if applicable):
7.3 -> 8.0

How reproducible:
All the time

Steps to Reproduce:
1. Follow Chapter 10 of OSP 8 guide
2. https://access.redhat.com/documentation/en/red-hat-openstack-platform/8/director-installation-and-usage/104-upgrading-the-overcloud
3.

Actual results:
[stack@undercloud ~]$ heat deployment-output-show fba36758-654a-4338-9737-907c1cf50998 --all
{
  "deploy_stdout": "Repository 'rhel-7-server-openstack-7.0-director-rpms' is disabled for this system.\nRepository 'rhel-7-server-openstack-7.0-rpms' is disabled for this system.\nError: rhel-7-server-openstack-8.0-rpms is not a valid repository ID. Use --list option to see valid repositories.\nError: rhel-7-server-openstack-8.0-director-rpms is not a valid repository ID. Use --list option to see valid repositories.\n", 
  "deploy_stderr": "", 
  "deploy_status_code": 1
}


Expected results:
success

Additional info:
The upgrade tries to enable repositories with name -8.0-, however, these repositories do not exist, as it's -8- only
[root@overcloud-compute-0 ~]# subscription-manager repos --list | grep openstack-8 | grep rpm | tail -3
Repo ID:   rhel-7-server-openstack-8-tools-debug-rpms
Repo ID:   rhel-7-server-openstack-8-rpms
Repo ID:   rhel-7-server-openstack-8-source-rpms