- use new vpp ref build: 17.01-rc0~81-g7dc4146~b1415_amd64
- build tested by semiweekly job:
https://jenkins.fd.io/job/csit-vpp-verify-master-semiweekly/1057/
Change-Id: Ica77c384f434c892bd403459c19f791379571b5f Signed-off-by: Jan Gelety <jgelety@cisco.com>