brcm63xx: diag.sh: use common status_led_blink_* functions

Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>

target/linux/brcm63xx/base-files/etc/diag.sh

@@ -133,13 +133,13 @@ set_state() {
 
 	case "$1" in
 	preinit)
-		status_led_set_timer 200 200
+		status_led_blink_preinit
 		;;
 	failsafe)
-		status_led_set_timer 50 50
+		status_led_blink_failsafe
 		;;
 	preinit_regular)
-		status_led_set_timer 500 500
+		status_led_blink_preinit_regular
 		;;
 	done)
 		if [ "${status_led/power}" != "$status_led" ]; then