Allow to pass in multiple CA cert paths to the smart card advises
    
    If the user has a series of CA certificates required to verify smart
    card certs (e.g. intermediary CAs and root CA) it is convenient to allow
    for passing them to the advise scripts as a series of PEM files.
    
    https://pagure.io/freeipa/issue/7036
    
    Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>
    Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>