iwlegacy: simplify init geos

Don't need to use conditional as ch->band is already assigned to
IEEE80211_BAND_5GHZ or IEEE80211_BAND_2GHZ

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlegacy/iwl-core.c

@@ -211,10 +211,7 @@ int iwl_legacy_init_geos(struct iwl_priv *priv)
 		if (!iwl_legacy_is_channel_valid(ch))
 			continue;
 
-		if (iwl_legacy_is_channel_a_band(ch))
-			sband =  &priv->bands[IEEE80211_BAND_5GHZ];
-		else
-			sband =  &priv->bands[IEEE80211_BAND_2GHZ];
+		sband = &priv->bands[ch->band];
 
 		geo_ch = &sband->channels[sband->n_channels++];