Break selinux-policy <-> rpm-plugin-selinux ordering loop (#1851266)
    
    Technically the packages depend on each other in that if you install on,
    the other must be pulled in for the functionality. However the
    installation order doesn't matter, as the plugin will only be used in
    the next transaction anyway. Thus, making that dependency unordered by
    flagging it as "meta" resolves the ordering loop.