feat(startup): add fast boot and fast restart function

components/esp8266/include/rom/uart.h

@@ -101,6 +101,11 @@ static inline STATUS UartRxString(uint8_t *pString, uint8_t MaxStrlen)
     return OK;
 }
 
+/**
+  * @brief Disable UART0 I/O swap and don't care about if TX FIFO is empty
+  */
+void uart_disable_swap_io(void);
+
 /**
   * @}
   */