Currently in an environment with trust to AD the compat tree does not
show AD users as members of IPA groups. The reason is that IPA groups
are read directly from the IPA DS tree and external groups are not
handled.
slapi-nis project has added support for it in 0.55, make sure we update
configuration for the group map if it exists and depend on 0.55 version.
https://fedorahosted.org/freeipa/ticket/4403
Reviewed-By: Tomas Babej <tbabej@redhat.com>