Fix ipa config-mod --ca-renewal-master
commit bddb90f38a3505a2768862d2f814c5e749a7dcde added the support for
multivalued server attributes (for pkinit_server_server), but this
introduced an API change where the setter and getter of ServerAttribute
are expecting list of values.
When a SingleValuedServerAttribute is used, we need to convert one elem
into a list containing this elem and vice-versa, so that the ipa config-mod
and ipa config_show APIs are not modified.
https://pagure.io/freeipa/issue/7120
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Fraser Tweedale <ftweedal@redhat.com>