use red led function for BV

bootloader.c

@@ -80,9 +80,10 @@ void main(void)
 
 	rcc_clock_setup_in_hse_8mhz_out_72mhz(); // start main clock
 	board_setup(); // setup board to control LED
-	led_on(); // indicate bootloader started
 #if defined(BUSVOODOO)
-	led_toggle(); // switch to red LED
+	led_red(); // switch red LED to indicate bootloader started
+#else
+	led_on(); // indicate bootloader started
 #endif
 	usb_dfu_setup(); // setup USB DFU for firmware upload
 	usb_dfu_start(); // run DFU mode