Merge branch 'dev-stats-virtio-l2tp_eth'

Eric Dumazet says:

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net: use DEV_STATS_xxx() helpers in virtio_net and l2tp_eth

Inspired by another (minor) KCSAN syzbot report.
Both virtio_net and l2tp_eth can use DEV_STATS_xxx() helpers.
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Signed-off-by: David S. Miller <davem@davemloft.net>