Merge branch 'phy-add-helpers-for-setting-clearing-bits-in-PHY-registers'

Merge branch 'phy-add-helpers-for-setting-clearing-bits-in-PHY-registers'

Heiner Kallweit says:

====================
phy: add helpers for setting/clearing bits in PHY registers

Based on the recent introduction of phy_modify add helpers for setting
and clearing bits in PHY registers. First user is phylib.
====================

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