Use common procedure to setup initial replication in both domain levels
Set up initial replication using GSSAPI also in domin level 0. For this to
work, the supplied DM password is used to connect to remote master and set up
agreements. The workflow is unchanged in DL1 where GSSAPI bind as host or
admin is used.
This obsoletes the conversion of replication agreements to GSSAPI made in DL0
during KDC installation.
https://fedorahosted.org/freeipa/ticket/6406
Reviewed-By: Martin Basti <mbasti@redhat.com>