Skip lock and fork in ipa-server-guard on unsupported ops
    
    On startup certmonger performs a number of options on the
    configured CA (IPA, not to be confused with the real dogtag CA)
    and the tracking requests.
    
    Break early for operations that are not supported by ipa-submit.
    This will save both a fork and a lock call.
    
    https://bugzilla.redhat.com/show_bug.cgi?id=1656519
    
    Reviewed-By: Fraser Tweedale <ftweedal@redhat.com>