ipaserver/plugins/dns.py: add "Dynamic Update" and "Bind update policy" to default dnszone* output

Displaying "Dynamic Update" and "Bind update policy" by default
when 'ipa dnszone-show/find' are used would make client dns update
failures easier to diagnose, so display them.

Fixes: https://pagure.io/freeipa/issue/7938
Signed-off-by: François Cami <fcami@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>

ipaserver/plugins/dns.py

@@ -2388,7 +2388,8 @@ class dnszone(DNSZoneBase):
     default_attributes = DNSZoneBase.default_attributes + [
         'idnssoamname', 'idnssoarname', 'idnssoaserial', 'idnssoarefresh',
         'idnssoaretry', 'idnssoaexpire', 'idnssoaminimum', 'idnsallowquery',
-        'idnsallowtransfer', 'idnssecinlinesigning',
+        'idnsallowtransfer', 'idnssecinlinesigning', 'idnsallowdynupdate',
+        'idnsupdatepolicy'
     ] + _record_attributes
     label = _('DNS Zones')
     label_singular = _('DNS Zone')