iwlwifi: display flowhandler register when sw error or on-demand

Flowhandler handle the communication between driver and uCode, when any
uCode error happen, we also like to know what is the status of the
flowhandler; it can help to debug flowhandler related problem.

Also adding debugfs file to dump current value of flowhandler registers.

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-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index a5a0ed4..c5f244f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -216,6 +216,7 @@
 	.dump_nic_event_log = iwl_dump_nic_event_log,
 	.dump_nic_error_log = iwl_dump_nic_error_log,
 	.dump_csr = iwl_dump_csr,
+	.dump_fh = iwl_dump_fh,
 	.init_alive_start = iwl5000_init_alive_start,
 	.alive_notify = iwl5000_alive_notify,
 	.send_tx_power = iwl5000_send_tx_power,