trivial: fix typos "man[ae]g?ment" -> "management"

Signed-off-by: Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index fb65b42..1d0d4d9 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -241,7 +241,7 @@
 	struct eth_platform_data *pdata;
 	int err = -ENXIO, i;
 
-	/* Enable managment port */
+	/* Enable management port */
 	macb_writel(bp, NCR, MACB_BIT(MPE));
 
 	bp->mii_bus = mdiobus_alloc();