Merge branch 'dsa-mv88e6xxx-PHY-nitpicks'

Vivien Didelot says:

====================
net: dsa: mv88e6xxx: PHY nitpicks

This patchset isolates more PPU code into phy.c and makes distinction
between PHY Registers read and write implementations vs. generic PHY
routines.
====================

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