iwlwifi: Thermal Throttling debugfs function

Add debugfs function to display current thermal throttling status for
both Legacy and Advance Thermal Throttling Management

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@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-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 9faf0c2..609a681 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -84,6 +84,7 @@
 		struct dentry *file_status;
 		struct dentry *file_interrupt;
 		struct dentry *file_qos;
+		struct dentry *file_thermal_throttling;
 #ifdef CONFIG_IWLWIFI_LEDS
 		struct dentry *file_led;
 #endif