Wireless will select a different hardware queue based on the
top 3 bits of the diffserv field, for ipv4. Extend that queue
selection mechanism to ipv6, and make the calls orthogonal.
Signed-off-by: NDave Täht <dave.taht@bufferbloat.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>