refactor: move bootloader_init_spi_flash to bootloader_flash_config_{target}.c

components/bootloader_support/bootloader_flash/include/esp_private/bootloader_flash_internal.h

@@ -0,0 +1,23 @@
+/*
+ * SPDX-FileCopyrightText: 2020-2023 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#pragma once
+#include <stdint.h>
+#include <esp_err.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Initialize spi_flash in bootloader and print flash info
+ *
+ * @return ESP_OK on success, otherwise see esp_err_t
+ */
+esp_err_t bootloader_init_spi_flash(void);
+
+#ifdef __cplusplus
+}
+#endif