Switch VMTP_TAG to the new commit id
Switch VMTP_TAG to the new commit id

The related review has been merged [1].

[1] https://review.openstack.org/#/c/580914/

Change-Id: I64dc2a38b08d02ea653582159d2af83fc7e16e31
Signed-off-by: Cédric Ollivier <d48310251a4a484d041bc5d09a9ac4d86d20f793@orange.com>

opnfv/functest,opnfv/functest