From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Thu, 30 Nov 2017 23:57:00 +0100

If state is not PHY_HALTED I see no need to temporarily disable
interrupts on the device. As long as the current interrupt isn't acked
on the device no new interrupt can happen anyway.

In addition remove a unneeded enabling of interrupts in the state
machine when handling state PHY_CHANGELINK.

Tested on a Odroid-C2 with RTL8211F phy in interrupt mode.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>

Also applied, and again if this regresses things I'm reverting.