packaging: setup: Allow dwh on separate host

Change-Id: I06fc960481af258b3954a8968be3439393d3ebdb
Bug-Url: https://bugzilla.redhat.com/1080997
Signed-off-by: Yedidyah Bar David <didi@redhat.com>
Signed-off-by: Sandro Bonazzola <sbonazzo@redhat.com>