Since
https://gerrit.fd.io/r/#/c/10668/
and
https://gerrit.fd.io/r/#/c/10669/
honeycomb packages from stable branches
no longer depend on single VPP version.
This patch updates download_hc_pkgs.hc script,
used by hc2vpp-csit jobs, to use the latest honeycomb package
in such case.
Change-Id: If5b006e72caa8cc905137b1bf02af7d9e927e37a
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>