Merge branch 'bpf-xdp-hw-plus-generic'

Jakub Kicinski says:

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Offloaded and native/driver XDP programs can already coexist.
Allow offload and generic hook to coexist as well, there seem
to be no reason why not to do so.
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Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>