packaging: spec: keep version at base package to avoid versionlock conflict

Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=976754
Change-Id: I76f517bf5e13f4ddd937ecf60e204b1a9359eeb0
Signed-off-by: Alon Bar-Lev <alonbl@redhat.com>