qcacmn: Extract roam message information

Extract btm response and initial roaming stats coming
from FW through WMI_ROAM_STATS_EVENTID event as
wmi_roam_msg_info_tlv_param.

Change-Id: I9a9b768d09a45ba70066cacb4aa420a90a39a76d
Crs-Fixed: 2826323

wmi/inc/wmi_unified_priv.h

@@ -375,6 +375,11 @@ QDF_STATUS
 QDF_STATUS
 (*extract_roam_initial_info)(wmi_unified_t wmi_handle, void *evt_buf,
 			     struct roam_initial_data *dst, uint8_t idx);
+
+QDF_STATUS
+(*extract_roam_msg_info)(wmi_unified_t wmi_handle, void *evt_buf,
+			 struct roam_msg_info *dst, uint8_t idx);
+
 #endif
 
 QDF_STATUS (*send_vdev_create_cmd)(wmi_unified_t wmi_handle,