net: ethernet: don't set phylib state CHANGELINK in drivers

After phy_start() phylib takes care of all needed actions, including
aneg settings and checking link state. There's no need to set state
PHY_CHANGELINK in drivers.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>