qcacmn: Send vendor attributes with the Roam stats

As part of commit I7a08635a7912cbd940d90a2d62433296740ad913
a vendor command is added to enable roam stats event.
This change registers callback to send the added vendor
command event to userspace.

Change-Id: I6dc3f8357ace5bb3fa41b4aa116652a91b9fd924
CRs-Fixed: 3427397

umac/mlme/mlme_objmgr/dispatcher/src/wlan_cmn_mlme_main.c

@@ -602,6 +602,16 @@ mlme_cm_osif_roam_complete(struct wlan_objmgr_vdev *vdev)
 	return ret;
 }
 
+void
+mlme_cm_osif_roam_rt_stats(struct roam_stats_event *roam_stats,
+			   uint8_t idx)
+{
+	if (glbl_cm_ops &&
+	    glbl_cm_ops->mlme_cm_roam_rt_stats_cb)
+		glbl_cm_ops->mlme_cm_roam_rt_stats_cb(roam_stats,
+						      idx);
+}
+
 QDF_STATUS
 mlme_cm_osif_roam_get_scan_params(struct wlan_objmgr_vdev *vdev,
 				  struct element_info *scan_ie,