plugins/bind_ports: Do not use when there are no allowed_target_types
    
    Do not use this plugin when source domain is not allowed to name_bind
    to any port type. This caused invalid command suggestion such as:
    
    semanage port -a -t  -p udp 5382 (the type is missing)
    
    This situation would require the user to add an allow rule or switch a
    boolean, which is handled by the catchall and catchall_boolean plugins.
    
    Fixes: rhbz#1255627