qcacld-3.0: Add magic string for WLAN WD timeouts

To speed up auto triage add magic string whenever driver detects
OPs watchdog timeout.

Change-Id: I2e8dad86b5056f30e82f7dfe9ebc0b4f24672310
CRs-Fixed: 2257331

core/hdd/src/wlan_hdd_main.c

@@ -13963,7 +13963,7 @@ void hdd_stop_driver_ops_timer(void)
  */
 void hdd_drv_ops_inactivity_handler(void)
 {
-	hdd_err("%s: %d Sec timer expired while in .%s",
+	hdd_err("WLAN_BUG_RCA %s: %d Sec timer expired while in .%s",
 		__func__, HDD_OPS_INACTIVITY_TIMEOUT/1000, drv_ops_string);
 
 	if (hdd_drv_ops_task) {