[qca-nss-drv] Add 802.11 4th address valid flag

802.11 4th address valid flag has been address in the wds metadata

Change-Id: I31079caff92aaf29c8ef6bc5b323430543264863
Signed-off-by: Aniruddha Paul <paulani@codeaurora.org>
diff --git a/exports/nss_wifi_vdev.h b/exports/nss_wifi_vdev.h
index a424842..ea91d6e 100644
--- a/exports/nss_wifi_vdev.h
+++ b/exports/nss_wifi_vdev.h
@@ -591,6 +591,7 @@
 	uint8_t reserved;	/**< Reserve bytes for alignment. */
 	enum wifi_vdev_ext_wds_info_type wds_type;
 				/**< WDS message type. */
+	uint8_t addr4_valid;	/**< 802.11 4th address valid flag. */
 };
 
 /**