feat(console): Modify console for ESP8266

components/spi_flash/include/spi_flash.h

@@ -49,6 +49,15 @@ typedef enum {
 typedef uint32_t spi_flash_mmap_handle_t;
 #endif
 
+/**
+ * @brief  Get flash chip size, as set in binary image header
+ *
+ * @note This value does not necessarily match real flash size.
+ *
+ * @return size of flash chip, in bytes
+ */
+size_t spi_flash_get_chip_size();
+
 /**
  * @brief  Erase the Flash sector.
  *