Merge branch 'rockchip-internal-phy'

David Wu says:

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rockchip: Add the integrated PHY support

The rk3228 and rk3328 support integrated PHY inside, let's enable
it to work. And the integrated PHY need to do some special setting,
so register the rockchip integrated PHY driver.
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Signed-off-by: David S. Miller <davem@davemloft.net>