iwlwifi: cancel run time calibration work when going down

Cancel scheduled run time calibration work when interface is going
down.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>

drivers/net/wireless/iwlwifi/iwl-agn.c

@@ -3641,6 +3641,7 @@ static void iwl_cancel_deferred_work(struct iwl_priv *priv)
 	cancel_delayed_work(&priv->scan_check);
 	cancel_work_sync(&priv->start_internal_scan);
 	cancel_delayed_work(&priv->alive_start);
+	cancel_work_sync(&priv->run_time_calib_work);
 	cancel_work_sync(&priv->beacon_update);
 	del_timer_sync(&priv->statistics_periodic);
 	del_timer_sync(&priv->ucode_trace);