There is an issue when multiple VPP versions of same commit
but different build is in repository. Artifacts.sh will find
multiple version and cennot properly download only one.
00:00:46.522 ++ apt-get -y download libvppinfra=19.04-rc0~
290-gd4295e61a~b2173 19.04-rc0~
290-gd4295e61a~b2172 19.04-rc0~
290-gd4295e61a~b2171 libvppinfra-dev=19.04-rc0~
290-gd4295e61a~b2173 19.04-rc0~
290-gd4295e61a~b2172 19.04-rc0~
290-gd4295e61a~b2171 <truncated...//pm>
This patch will select latest as the behavior is result of
re-merge effect.
Change-Id: I8ce21244e2b05e60af0ea51107f9138173844330
Signed-off-by: Peter Mikus <pmikus@cisco.com>