Merge branch 'hv_netvsc-features'

Haiyang Zhang says:

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hv_netvsc: Enable sg as tunable, sync offload settings to VF NIC

This patch set fixes an issue in SG tuning, and sync
offload settings from synthetic NIC to VF NIC.
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Signed-off-by: David S. Miller <davem@davemloft.net>