feat(esp32s31): Add g0 component support

components/esp_hal_mspi/esp32s31/include/hal/mspi_ll.h

@@ -0,0 +1,43 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*******************************************************************************
+ * NOTICE
+ * The ll is not public api, don't use in application code.
+ * See readme.md in hal/include/hal/readme.md
+ ******************************************************************************/
+
+/**
+ * Background
+ *
+ * This file is for the MSPI related, but not Flash driver related registers, these registers:
+ * - may influence both Flash and PSRAM
+ * - not related or directly related to Flash controller driver
+ *
+ * Some hints for naming convention:
+ * - For MSPI timing tuning related registers, the LL should start with `mspi_timing_ll_`
+ * - For others, the LL should start with `mspi_ll_`
+ */
+
+#pragma once
+
+#include <sys/param.h>
+#include <stdbool.h>
+#include "esp_bit_defs.h"
+#include "hal/assert.h"
+#include "soc/soc.h"
+#include "soc/spi_mem_reg.h"
+#include "soc/io_mux_reg.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// TODO: ["ESP32S31"] IDF-14653
+
+#ifdef __cplusplus
+}
+#endif