net: ethernet: fec: Revert "net: ethernet: fec: Replace interrupt driven MDIO with polled IO"

This reverts commit 29ae6bd1b0d8a57d7c00ab12cbb949fc41986eef.

The commit breaks ethernet function on i.MX6SX, i.MX7D, i.MX8MM,
i.MX8MQ, and i.MX8QXP platforms. Boot yocto system by NFS mounting
rootfs will be failed with the commit.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 files changed