[releng] Issue #7997: unretire epel7 branch for libmspack

[Dan Horák]

sharkcz reported a new issue against the project: `releng` that you are following:
``
* Name of the package?
libmspack

* FAS username of the new maintainer?
orion

* Branches that you need it to be unretired for?
epel7

* Package re-review BZ URL?
N/A, it's still an active package in Fedora

* Any extra information?
The epel7 branch got retired because libmspack appeared in RHEL 7.6, but it's not provided for all arches. Thus will be reintroduced as arch-limited package.

CCing @orion 
``

To reply, visit the link below or just reply to this email
https://pagure.io/releng/issue/7997