Package "selinux-policy" and "selinux-policy-minimum", mentioned in the docs in
31.4 of
https://doc.opensuse.org/documentation/leap/security/html/book.security/cha.selinux.html
are missing in Leap 15. Issue is the same as in Bug #1017272 and #1052493, but
for a new release of OpenSuse. 

Expected behavior: 
After running step 31.3 of doc mentioned above the package selinux-policy and
selinux-policy-minimum are installed. 
After adopting grub2 config and reboot the commands "seinfo" and "sestatus"
should deliver insights on the policy installed and list selinux as running in
permissive mode. 

Actual behavior:
The packages mentioning (potentially alongside with others!) are missing.
SELinux therefore returns no policy data when running "seinfo" and returns the
status "disabled" when running "sestatus", as it cant start without a policy. 

Differences from former Bugs:
- New Leap Version
- No issues at boot, in contrast to Bug #1017272

Requested mitigation: 
Please add the necessary files to the Leap15 Repo.