net: mii: Fix changes made by spatch

Some of the changes were a bit too complex.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/board/gdsys/405ex/io64.c b/board/gdsys/405ex/io64.c
index 6a83788..848cdde 100644
--- a/board/gdsys/405ex/io64.c
+++ b/board/gdsys/405ex/io64.c
@@ -264,8 +264,7 @@
 		putc(slash[k % 8]);
 	}
 
-	int retval;
-	struct mii_dev *mdiodev = mdio_alloc();
+	mdiodev = mdio_alloc();
 	if (!mdiodev)
 		return -ENOMEM;
 	strncpy(mdiodev->name, CONFIG_SYS_GBIT_MII1_BUSNAME, MDIO_NAME_LEN);