iwlwifi: Add tx_ant_num hw setting variable

Added tx_ant_num variable into hw_setting
This will be used for scanning TX antenna toggling
On the way removed ac_queue_num unused

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-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index 393cff6..dde389d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.h
@@ -508,8 +508,8 @@
 /**
  * struct iwl3945_driver_hw_info
  * @max_txq_num: Max # Tx queues supported
- * @ac_queue_count: # Tx queues for EDCA Access Categories (AC)
  * @tx_cmd_len: Size of Tx command (but not including frame itself)
+ * @tx_ant_num: Number of TX antennas
  * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
  * @rx_buf_size:
  * @max_pkt_size:
@@ -521,8 +521,8 @@
  */
 struct iwl3945_driver_hw_info {
 	u16 max_txq_num;
-	u16 ac_queue_count;
 	u16 tx_cmd_len;
+	u16 tx_ant_num;
 	u16 max_rxq_size;
 	u32 rx_buf_size;
 	u32 max_pkt_size;