hv_netvsc: Add support for XDP_REDIRECT

Handle XDP_REDIRECT action in netvsc driver.
Also, transparently pass ndo_xdp_xmit to VF when available.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Link: https://lore.kernel.org/r/1649362894-20077-1-git-send-email-haiyangz@microsoft.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>