iwlwifi: move iwl_cfg from iwl_priv to iwl_shared

Move the configuration pointer from the upper level iwl_priv to the
lower level iwl_shared structure, with associated code fixes.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index 359d218..084aa2c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -691,8 +691,8 @@
 		 * Internal scans are passive, so we can indiscriminately set
 		 * the BT ignore flag on 2.4 GHz since it applies to TX only.
 		 */
-		if (priv->cfg->bt_params &&
-		    priv->cfg->bt_params->advanced_bt_coexist)
+		if (cfg(priv)->bt_params &&
+		    cfg(priv)->bt_params->advanced_bt_coexist)
 			scan->tx_cmd.tx_flags |= TX_CMD_FLG_IGNORE_BT;
 		break;
 	case IEEE80211_BAND_5GHZ:
@@ -733,12 +733,12 @@
 
 	band = priv->scan_band;
 
-	if (priv->cfg->scan_rx_antennas[band])
-		rx_ant = priv->cfg->scan_rx_antennas[band];
+	if (cfg(priv)->scan_rx_antennas[band])
+		rx_ant = cfg(priv)->scan_rx_antennas[band];
 
 	if (band == IEEE80211_BAND_2GHZ &&
-	    priv->cfg->bt_params &&
-	    priv->cfg->bt_params->advanced_bt_coexist) {
+	    cfg(priv)->bt_params &&
+	    cfg(priv)->bt_params->advanced_bt_coexist) {
 		/* transmit 2.4 GHz probes only on first antenna */
 		scan_tx_antennas = first_antenna(scan_tx_antennas);
 	}
@@ -762,8 +762,8 @@
 
 		rx_ant = first_antenna(active_chains);
 	}
-	if (priv->cfg->bt_params &&
-	    priv->cfg->bt_params->advanced_bt_coexist &&
+	if (cfg(priv)->bt_params &&
+	    cfg(priv)->bt_params->advanced_bt_coexist &&
 	    priv->bt_full_concurrent) {
 		/* operated as 1x1 in full concurrency mode */
 		rx_ant = first_antenna(rx_ant);