ipa-replica-install never checks for 7389 port
    
    When creating replica from a Dogtag 9 based IPA server, the port 7389
    which is required for the installation is never checked by
    ipa-replica-conncheck even though it knows that it is being installed
    from the Dogtag 9 based FreeIPA. If the 7389 port would be blocked by
    firewall, installation would stuck with no hint to user.
    
    Make sure that the port configuration parsed from replica info file
    is used consistently in the installers.
    
    https://fedorahosted.org/freeipa/ticket/4240
    
    Reviewed-By: Petr Viktorin <pviktori@redhat.com>