packaging: setup: Move JASPER_HOME init to common

Without this, engine-cleanup fails.

Bug-Url: https://bugzilla.redhat.com/1098149
Change-Id: I3354802b902bb99a593a5028a5b3685787b579c8
Signed-off-by: Yedidyah Bar David <didi@redhat.com>
(cherry picked from commit ccdc91bcd1b1dc10b89dc7753f2b533cd30977e5)