packaging: setup: extending valid email addressed

Bug-Url: https://bugzilla.redhat.com/1065269
Change-Id: Id4e84e36080ea7dc49b8577fa2d431c3bb3b959c
Signed-off-by: Giorgio Bersano <giorgio.bersano@patrimoniosettimo.it>
Signed-off-by: Sandro Bonazzola <sbonazzo@redhat.com>