net/fec: no need to memzero private data

alloc_etherdev internally uses kzalloc, so the private data is already
zerod out.

Reported-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

drivers/net/fec.c

@@ -1386,7 +1386,6 @@ fec_probe(struct platform_device *pdev)
 
 	/* setup board info structure */
 	fep = netdev_priv(ndev);
-	memset(fep, 0, sizeof(*fep));
 
 	ndev->base_addr = (unsigned long)ioremap(r->start, resource_size(r));
 	fep->pdev = pdev;