rt2x00: Comment spellchecking

Fix a bunch of spelling errors in the rt2x00 drivers

Signed-off-by: Luis Correia <luis.f.correia@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2x00crypto.c b/drivers/net/wireless/rt2x00/rt2x00crypto.c
index c54eda3..30fbd3b 100644
--- a/drivers/net/wireless/rt2x00/rt2x00crypto.c
+++ b/drivers/net/wireless/rt2x00/rt2x00crypto.c
@@ -129,7 +129,7 @@
 	/* Pull buffer to correct size */
 	skb_pull(skb, txdesc->iv_len);
 
-	/* IV/EIV data has officially be stripped */
+	/* IV/EIV data has officially been stripped */
 	skbdesc->flags |= SKBDESC_IV_STRIPPED;
 }