Add a new attribute to support 64bit rates so that
tc can use them to break the 32bit limit.
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>
Acked-by: NStephen Hemminger <stephen@networkplumber.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>