Merge branch 'bugfix/fix_bootloader_wrong_spi_freq_print_v5.1' into '…

…release/v5.1'

bugfix: fix esp32c6 bootloader print wrong spi speed mode (backport v5.1)

See merge request espressif/esp-idf!24460

components/bootloader_support/bootloader_flash/src/bootloader_flash_config_esp32c6.c

@@ -200,6 +200,12 @@ esp_err_t bootloader_init_spi_flash(void)
     bootloader_enable_qio_mode();
 #endif
 
+    // Since the workaround in IDF-6709, the spi_speed value in the bootloader header
+    // is not the real value, overwrite it.
+#if CONFIG_ESPTOOLPY_FLASHFREQ_80M
+    bootloader_image_hdr.spi_speed = ESP_IMAGE_SPI_SPEED_DIV_1;
+#endif
+
     print_flash_info(&bootloader_image_hdr);
     update_flash_config(&bootloader_image_hdr);
     //ensure the flash is write-protected