iwlwifi: move aggregation code to iwl-tx.c

This patch moves aggregation action code to iwl-tx.c in iwlcore.

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/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 217c6a9..9ef4468 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -1193,7 +1193,7 @@
 				else
 					ieee80211_wake_queue(priv->hw, ampdu_q);
 			}
-			iwl4965_check_empty_hw_queue(priv, sta_id, tid, txq_id);
+			iwl_txq_check_empty(priv, sta_id, tid, txq_id);
 		}
 	} else {
 #endif /* CONFIG_IWL4965_HT */
@@ -1218,7 +1218,7 @@
 			(txq_id >= 0) && priv->mac80211_registered)
 			ieee80211_wake_queue(priv->hw, txq_id);
 		if (tid != MAX_TID_COUNT)
-			iwl4965_check_empty_hw_queue(priv, sta_id, tid, txq_id);
+			iwl_txq_check_empty(priv, sta_id, tid, txq_id);
 	}
 	}
 #endif /* CONFIG_IWL4965_HT */