iwlwifi: hw_setting cleanup

1. This patch renames hw_setting to hw_params
2. Align names of the structure and variables
3. set_hw_params is called from libs_ops

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index cbea477..0f16f26 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -207,7 +207,7 @@
 {
 	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
 	struct iwl4965_station_entry *station;
-	int max_sta = priv->hw_setting.max_stations;
+	int max_sta = priv->hw_params.max_stations;
 	char *buf;
 	int i, j, pos = 0;
 	ssize_t ret;