common: miiphyutil: no need to check name of mii_dev

The entry name of mii_dev is an array not pointer, so
no need to check.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

common/miiphyutil.c

@@ -159,7 +159,7 @@ void mdio_free(struct mii_dev *bus)
 
 int mdio_register(struct mii_dev *bus)
 {
-	if (!bus || !bus->name || !bus->read || !bus->write)
+	if (!bus || !bus->read || !bus->write)
 		return -1;
 
 	/* check if we have unique name */