Merge branch 'net-ks8851-Add-KS8851-PHY-support'

Marek Vasut says:

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net: ks8851: Add KS8851 PHY support

The KS8851 has a reduced internal PHY, which is accessible through its
registers at offset 0xe4. The PHY is compatible with KS886x PHY present
in Micrel switches, including the PHY ID Low/High registers swap, which
is present both in the MAC and the switch.
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Signed-off-by: David S. Miller <davem@davemloft.net>