Merge branch 'net-phy-dp83867-add-some-fixes'

Max Uvarov says:

====================
net: phy: dp83867: add some fixes

v3: use phy_modify_mmd()
v2: fix minor comments by Heiner Kallweit and Florian Fainelli
====================

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