net/freescale: Don't set zero if FW iand bus not-available in gianfar

Rely on ethtool to properly present the fact that FW and bus
are not available for the gianfar driver.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed