bootloader: combine console code for ESP32 and S2, add USB support

components/bootloader_support/include_bootloader/bootloader_utility.h

@@ -75,6 +75,11 @@ void bootloader_utility_load_boot_image_from_deep_sleep(void);
  */
 __attribute__((noreturn)) void bootloader_reset(void);
 
+/**
+ * @brief Do any cleanup before exiting the bootloader, before starting the app or resetting
+ */
+void bootloader_atexit(void);
+
 /**
  * @brief Converts an array to a printable string.
  *