- use new vpp ref build: 17.01-rc0~256-gbd6462e~b1592_amd64
- build tested by semiweekly job:
https://jenkins.fd.io/job/csit-vpp-verify-master-semiweekly/1065/
Change-Id: I70019095a41c5e8bc8a15c472c608b77124cbe7f Signed-off-by: Jan Gelety <jgelety@cisco.com>