Merge branch 'Macb-power-management-support-for-ZynqMP'

Harini Katakam says:

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Macb power management support for ZynqMP

This series adds support for macb suspend/resume with system power down.
In relation to the above, this series also updates mdio_read/write
function for PM and adds tsu clock management.
====================

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