iwlwifi: add BT notification support for bt coex

When advanced bt coex enabled, uCode will send bt status
notification to driver, here add support for it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 1ad3303..5d327b4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1362,6 +1362,10 @@
 #endif
 	};
 
+	u8 bt_traffic_load;
+	bool bt_sco_active;
+	struct work_struct bt_traffic_change_work;
+
 	struct iwl_hw_params hw_params;
 
 	u32 inta_mask;