net: fec: restore dev_id in the cases of probe error

The static variable dev_id always plus one before netdev registerred.
It should restore the dev_id value in the cases of probe error.

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