Use the new mac_managed_pm flag to work around an issue with KSZ8081 PHY
that becomes unstable when a soft reset is triggered during aneg.
Reported-by: NJoakim Zhang <qiangqing.zhang@nxp.com>
Tested-by: NJoakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: NHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>