Dogtag configs: rename deprecated options
    
    ipa-{server,kra}-install logs have been showing warnings about
    deprecation of some Dogtag configuration options. Follow
    the warnings' advice and rename these options to their newer
    form.
    
    Reviewed-By: Christian Heimes <cheimes@redhat.com>
    Reviewed-By: Alexander Koksharov <akokshar@redhat.com>