mwifiex: fix spelling mistake: "Insuffient" -> "Insufficient"

Trivial fix to spelling mistake in mwifiex_dbg debug message
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/marvell/mwifiex/tdls.c

@@ -130,7 +130,7 @@ mwifiex_tdls_append_rates_ie(struct mwifiex_private *priv,
 
 	if (skb_tailroom(skb) < rates_size + 4) {
 		mwifiex_dbg(priv->adapter, ERROR,
-			    "Insuffient space while adding rates\n");
+			    "Insufficient space while adding rates\n");
 		return -ENOMEM;
 	}