[tmp] collie: parallelize vdi check

Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>
[tmp] tests: fix vdi check order

Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>
Revert dual nic support

Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>