packaging: build: fix jboss deploy location

broken by I88563c8c0

Change-Id: Id578f163f355b15743be1685038530047c39bfcc
Signed-off-by: Alon Bar-Lev <alonbl@redhat.com>
(cherry picked from commit b87125e7a3fbf09ab2f32216a617296f383f7be0)