net/wireless: ipw2x00: fix a typo in wiphy struct initilization

Fix comment as well.
Signed-off-by: Stanislav Yakovlev <stas.yakovlev@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ipw2x00/ipw2200.c

@@ -11507,9 +11507,9 @@ static int ipw_wdev_init(struct net_device *dev)
 			rc = -ENOMEM;
 			goto out;
 		}
-		/* translate geo->bg to a_band.channels */
+		/* translate geo->a to a_band.channels */
 		for (i = 0; i < geo->a_channels; i++) {
-			a_band->channels[i].band = IEEE80211_BAND_2GHZ;
+			a_band->channels[i].band = IEEE80211_BAND_5GHZ;
 			a_band->channels[i].center_freq = geo->a[i].freq;
 			a_band->channels[i].hw_value = geo->a[i].channel;
 			a_band->channels[i].max_power = geo->a[i].max_power;