- Add Conflicts: otherproviders() and Provides for relevant packages.

https://gist.githubusercontent.com/jberry-suse/99329e902ecae6a03a903fa8623c0ce3/raw/23bbb36d1b3f37dd1ea50cee49d958f00d36bfe9/repo_checker.openSUSE:Factory:Staging:L

Given that tooling seems to still expect otherproviders() it seems to make
sense to still utilize it even if rpm no longer requires.
https://github.com/openSUSE/rpmlint-checks/blob/master/BrandingPolicyCheck.py

Feel free to drop later if confirmed no issues.