feat(linux_target): enable hello world example for linux target

components/spi_flash/linux/spi_flash_linux.c

@@ -0,0 +1,13 @@
+/*
+ * SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#include "esp_flash.h"
+
+esp_err_t esp_flash_get_size(esp_flash_t *chip, uint32_t *out_size)
+{
+    (void)chip;
+    *out_size = UINT32_MAX;
+    return ESP_OK;
+}