advise: configure TLS in redhat_nss_pam_ldapd and redhat_nss_ldap plugins
    
    authconfig in config_redhat_nss_ldap and config_redhat_nss_pam_ldapd got
    new option --enableldaptls
    
    It should have effect primarily on el5 systems.
    
    https://fedorahosted.org/freeipa/ticket/5654
    
    Reviewed-By: Tomas Babej <tbabej@redhat.com>