Fix docker.io version in 18.04 vagrant setup
Fix docker.io version in 18.04 vagrant setup

brecode/vpp,brecode/vpp,rastislavszabo/vpp,brecode/vpp,brecode/vpp,rastislavszabo/vpp,rastislavszabo/vpp,rastislavszabo/vpp,rastislavszabo/vpp,rastislavszabo/vpp,rastislavszabo/vpp,brecode/vpp