route/link: assert in rtnl_link_change() that the sequence number is set as expected
route/link: assert in rtnl_link_change() that the sequence number is set as expected

thom311/libnl,thom311/libnl,greearb/libnl-ct,thom311/libnl,greearb/libnl-ct,greearb/libnl-ct