packaging: spec: sort spring deps

forgot to sort() within the I3bbf36399

Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1120720
Change-Id: I51abd85a12436bd02f1849bba662f94d8ef6582c
Signed-off-by: Alon Bar-Lev <alonbl@redhat.com>