packaging: dbscripts: Add DWH hostname and uuid

These are used to track remote dwh setups.

Change-Id: Ib66d62fa0da0cd1014e71ae509e49b28228d0cf1
Bug-Url: https://bugzilla.redhat.com/1118350
Signed-off-by: Yedidyah Bar David <didi@redhat.com>