[refactor] prepare for link gen

firmware/shared_libs/drivers/led/led.h

@@ -0,0 +1,8 @@
+#pragma once
+
+#include "gpio.h"
+#include "ctrl_app_types.h"
+
+void led_init(led_handle_t *hled, GPIO_TypeDef *port, uint16_t pin);
+void led_on(led_handle_t *hled);
+void led_off(led_handle_t *hled);