Reuse master instance when installing replica with custom DS config.
This avoids one extra ipa-server-install and also tests replica
installation from a master with custom DS config.
See: https://pagure.io/freeipa/issue/7743
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>