Always check and create anonymous principal during KDC install
    
    The anonymous principal will now be checked for presence and created on
    both server and replica install. This fixes errors caused during replica
    installation against older master that do not have anonymous principal
    present.
    
    https://pagure.io/freeipa/issue/6799
    
    Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>