Merge branch 'cpsw-allow-vlan-h-w-timestamping'

Ivan Khoronzhuk says:

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net: ethernet: ti: cpsw: allow vlan h/w timestamping

The patchset adds several improvements and allows vlan h/w ts.

Based on net-next/master
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Signed-off-by: David S. Miller <davem@davemloft.net>