iwlwifi: move iwl4965_set_rxon_ht into iwlcore

This patch moves iwl4965_set_rxon_ht to iwlcore under name
iwl_set_rxon_ht. It also moves collateral changes
iwl_is_channel_extension and iwl_is_fat_tx_allowed.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index 9f51d3a..ad45249 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -2783,9 +2783,9 @@
 		     tx_resp->failure_frame);
 
 	IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index);
+#ifdef CONFIG_IWL4965_HT
 	if (index != -1) {
 		int freed = iwl4965_tx_queue_reclaim(priv, txq_id, index);
-#ifdef CONFIG_IWL4965_HT
 		if (tid != MAX_TID_COUNT)
 			priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
 		if (iwl4965_queue_space(&txq->q) > txq->q.low_mark &&
@@ -2793,9 +2793,7 @@
 			ieee80211_wake_queue(priv->hw, txq_id);
 		if (tid != MAX_TID_COUNT)
 			iwl4965_check_empty_hw_queue(priv, sta_id, tid, txq_id);
-#endif
 	}
-#ifdef CONFIG_IWL4965_HT
 	}
 #endif /* CONFIG_IWL4965_HT */
 
@@ -5124,7 +5122,7 @@
 
 #ifdef CONFIG_IWL4965_HT
 	if (priv->current_ht_config.is_ht)
-		iwl4965_set_rxon_ht(priv, &priv->current_ht_config);
+		iwl_set_rxon_ht(priv, &priv->current_ht_config);
 #endif /* CONFIG_IWL4965_HT*/
 	iwl_set_rxon_chain(priv);
 	priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);