Merge branch 'genphy'

Sascha Hauer says:

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make of_set_phy_supported work with genphy driver

The mdio phys recently gained support for specifying the phy speed
via devicetree. This currently only works with the hardware specific
phy drivers but not with the genphy driver. This series fixes this.
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Signed-off-by: David S. Miller <davem@davemloft.net>