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-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index aef1b48..7791d2b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -89,6 +89,8 @@
 struct iwl_lib_ops {
 	/* iwlwifi driver (priv) init */
 	int (*init_drv)(struct iwl_priv *priv);
+	/* set hw dependant perameters */
+	int (*set_hw_params)(struct iwl_priv *priv);
 
 	void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
 					struct iwl4965_tx_queue *txq,