Require newer initscript

Avoid initscript/udev bug https://bugzilla.redhat.com/907365 that cause
network device renaming to "renameXX".

Change-Id: If7d31142e4f4638f72c086895e518aeba0fb12ca
Signed-off-by: Dan Kenigsberg <danken@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/13052
Reviewed-by: Douglas Schilling Landgraf <dougsland@redhat.com>