dogtag-ipa-ca-renew-agent-submit: fix the is_replicated() function
    
    dogtag-ipa-ca-renew-agent-submit behaves differently depending on the
    certificate it needs to renew. For instance, some certificates (such as IPA RA)
    are the same on all the hosts and the renewal is actually done only on
    the renewal master. On other nodes, the new cert is downloaded from LDAP.
    
    The function is_replicated() is returning the opposite as what it should. If
    the cert nickname is IPA RA, it should return that the cert is replicated but
    it doesn't, and this leads to a wrong code path to renew the cert.
    
    https://pagure.io/freeipa/issue/6813
    
    Reviewed-By: Jan Cholasta <jcholast@redhat.com>