wl12xx: Include OFDM rates in IBSS mode

We were including only 11b rates in IBSS mode.  This patch adds OFDM
rates.

[Rephrased commit log and removed one unnecessary comment. -- Luca]

Signed-off-by: Shahar Levi <shahar_levi@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c
index 680f558..7218944 100644
--- a/drivers/net/wireless/wl12xx/main.c
+++ b/drivers/net/wireless/wl12xx/main.c
@@ -3472,7 +3472,7 @@
 									 rates);
 			wl->basic_rate = wl1271_tx_min_rate_get(wl);
 
-			/* by default, use 11b rates */
+			/* by default, use 11b + OFDM rates */
 			wl->rate_set = CONF_TX_IBSS_DEFAULT_RATES;
 			ret = wl1271_acx_sta_rate_policies(wl);
 			if (ret < 0)