net: eepro100: Switch from malloc()+memset() to calloc()

Replace malloc()+memset() combination with calloc(), no functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
diff --git a/drivers/net/eepro100.c b/drivers/net/eepro100.c
index 74b09e9..8fa6657 100644
--- a/drivers/net/eepro100.c
+++ b/drivers/net/eepro100.c
@@ -746,12 +746,11 @@
 			continue;
 		}
 
-		dev = (struct eth_device *)malloc(sizeof(*dev));
+		dev = calloc(1, sizeof(*dev));
 		if (!dev) {
 			printf("eepro100: Can not allocate memory\n");
 			break;
 		}
-		memset(dev, 0, sizeof(*dev));
 
 		sprintf(dev->name, "i82559#%d", card_number);
 		dev->priv = (void *)devno; /* this have to come before bus_to_phys() */