net: fix typo

Signed-off-by: Flavio Suligoi <f.suligoi@asem.it>
diff --git a/drivers/net/mvpp2.c b/drivers/net/mvpp2.c
index 917d06b..b234b41 100644
--- a/drivers/net/mvpp2.c
+++ b/drivers/net/mvpp2.c
@@ -580,7 +580,7 @@
 /* Default number of TXQs in use */
 #define MVPP2_DEFAULT_TXQ		1
 
-/* Dfault number of RXQs in use */
+/* Default number of RXQs in use */
 #define MVPP2_DEFAULT_RXQ		1
 #define CONFIG_MV_ETH_RXQ		8	/* increment by 8 */