mwl8k: add 2.4GHz channels 12, 13 and 14

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index 5c849aa..c54f830 100644
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -242,6 +242,9 @@
 	{ .center_freq = 2452, .hw_value = 9, },
 	{ .center_freq = 2457, .hw_value = 10, },
 	{ .center_freq = 2462, .hw_value = 11, },
+	{ .center_freq = 2467, .hw_value = 12, },
+	{ .center_freq = 2472, .hw_value = 13, },
+	{ .center_freq = 2484, .hw_value = 14, },
 };
 
 static const struct ieee80211_rate mwl8k_rates[] = {