Merge branch 'mdio-gpio-next'

Florian Fainelli says:

====================
net: mdio-gpio: Use modern GPIO helpers

This patch series modernizes the mdio-gpio and makes it switch to the
latest and greatest API for manipulating GPIO lines, thus allowing
some simplifications in the driver.
====================

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