Merge branch 'veth-xdp-gro'

Ignat Korchagin says:

====================
net: veth: ability to toggle GRO and XDP independently

It is rather confusing that GRO is automatically enabled, when an XDP program
is attached to a veth interface. Moreover, it is not possible to disable GRO
on a veth, if an XDP program is attached (which might be desirable in some use
cases).

Make GRO and XDP independent for a veth interface.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>