packaging: setup: use engine package env for versionlock

Compliment Ibad05b1e0283b0b27fb278a0ba15b3f7e95d747c

Bug-Url: https://bugzilla.redhat.com/1076046
Change-Id: I5bcd649ee872269b9e687e0517a5b6de6f81284d
Signed-off-by: Yedidyah Bar David <didi@redhat.com>