net: phy: Log only PHY state transitions

In the current code, old and new PHY states are always logged.
>From now on, log only PHY state transitions.

Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Marc Gonzalez 2017-07-28 13:18:30 +02:00 • committed by David S. Miller
commit 6a95befc8d