base-files: save the connect time of interfaces in uci state

SVN-Revision: 24206

package/base-files/files/etc/hotplug.d/iface/00-netstate

@@ -1,4 +1,5 @@
 [ ifup = "$ACTION" ] && {
 	uci_set_state network "$INTERFACE" up 1 
+	uci_set_state network "$INTERFACE" connect_time $(date +%s)
 	[ -n "$DEVICE" ] && uci_set_state network "$INTERFACE" ifname "$DEVICE"
 }