qcacmn: update the hang data for wmi

whenever there is a wmi timeout and recovery is triggered, the
wmi history gives insight into reason for the recovery, hence save
the last 5 commands/events to understand the reason for the hang
recovery.

Change-Id: Ie4e0431a8fa6971e6b25b20a6f267341d3f3f4fd
CRs-Fixed: 2650340

wmi/src/wmi_unified.c

@@ -38,6 +38,7 @@
 #include <target_if.h>
 #include <qdf_debugfs.h>
 #include "wmi_filtered_logging.h"
+#include <wmi_hang_event.h>
 
 /* This check for CONFIG_WIN temporary added due to redeclaration compilation
 error in MCL. Error is caused due to inclusion of wmi.h in wmi_unified_api.h
@@ -2814,6 +2815,8 @@ void *wmi_unified_attach(void *scn_handle,
 
 	wmi_wbuff_register(wmi_handle);
 
+	wmi_hang_event_notifier_register(wmi_handle);
+
 	return wmi_handle;
 
 error:
@@ -2836,6 +2839,8 @@ void wmi_unified_detach(struct wmi_unified *wmi_handle)
 	struct wmi_soc *soc;
 	uint8_t i;
 
+	wmi_hang_event_notifier_unregister();
+
 	wmi_wbuff_deregister(wmi_handle);
 
 	wmi_ext_dbgfs_deinit(wmi_handle);