packaging: spec: make setup require openjdk 1.7.0

Change-Id: I502287ac96ed29ceb46f973d72bf659bb1b6dbea
Bug-Url: https://bugzilla.redhat.com/1140746
Signed-off-by: Yedidyah Bar David <didi@redhat.com>
(cherry picked from commit 071b1fc8b635982a6d381b6640908f02941c5cc5)