Merge branch 'Microchip-KSZ-driver-enhancements'

Robert Hancock says:

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Microchip KSZ driver enhancements

A couple of enhancements to the Microchip KSZ switch driver: one to add
PHY register settings for errata workarounds for more stable operation, and
another to add a device tree option to change the output clock rate as
required by some board designs.
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Signed-off-by: David S. Miller <davem@davemloft.net>