Merge branch 'r8169-make-RTL8401-a-separate-chip-version'

Heiner Kallweit says:

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r8169: make RTL8401 a separate chip version

So far RTL8401 was treated like a RTL8101e, means we relied on the BIOS
to configure MAC and PHY properly. Make RTL8401 a separate chip version
and copy MAC / PHY config from r8101 vendor driver.
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Signed-off-by: David S. Miller <davem@davemloft.net>