Merge branch 'Add-support-for-SFPs-behind-PHYs'

Russell King says:

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Add support for SFPs behind PHYs

This series adds partial support for SFP cages connected to PHYs,
specifically optical SFPs.

We add core infrastructure to phylib for this, and arrange for
minimal code in the PHY driver - currently, this is code to verify
that the module is one that we can support for Marvell 10G PHYs.

v2: add yaml binding patch
====================

Signed-off-by: David S. Miller <davem@davemloft.net>