Enable LWCA monitor explicitly
    
    Currently LWCA is only supported in IPA since the key
    replication depends on Custodia, so LWCA is not actually
    supported in regular PKI installation. However, currently
    the AuthorityMonitor is enabled by default and it executes
    a persistent search to monitor LWCA replication so it is
    wasting resources in non-IPA environment.
    
    To reduce unnecessary resource consumption the LWCA monitor
    will be disabled by default in PKI, so IPA will need to
    enable it explicitly for new and existing installations.
    
    Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>