packaging: spec: Confict with dwh/reports 3.4 setup

setup plugins of dwh/reports 3.4 do not work well with engine-setup 3.5

Change-Id: I41485912f97bef698897105ede46bd6e8b748986
Bug-Url: https://bugzilla.redhat.com/1129568
Signed-off-by: Yedidyah Bar David <didi@redhat.com>