增加 BLE MAC 地址管理功能，添加电量灯颜色设置，优化调度器挂起和恢复逻辑

components/system/include/drivers/chip/uart.h

@@ -29,6 +29,12 @@ void drv_uart_disable(hal_id_t id);
 void drv_uart_init(hal_id_t id, const uart_param_t *param);
 void drv_uart_deinit(hal_id_t id);
 
+void drv_uart_set_tx_buffer(hal_id_t id, void *buf, unsigned size);
+void drv_uart_set_rx_buffer(hal_id_t id, void *buf, unsigned size);
+
+int drv_uart_get_tx_buffer_available(hal_id_t id);
+int drv_uart_get_rx_data_available(hal_id_t id);
+
 void drv_uart_set_br(hal_id_t id, unsigned clk, unsigned baudrate);
 unsigned drv_uart_get_br(hal_id_t id, unsigned clk);