attr: validate MNL_TYPE_MSEC same as MNL_TYPE_U64
attr: validate MNL_TYPE_MSEC same as MNL_TYPE_U64

Signed-off-by: Ken-ichirou MATSUZAWA <7b54fff30da61b4ee81a49d671ad9f948c8b673f@h4.dion.ne.jp>
Signed-off-by: Florian Westphal <cef439e78636cdab99cd2923826c5065a0743e5b@strlen.de>

chamaken/libmnl,greearb/libmnl-ct,chamaken/libmnl,greearb/libmnl-ct