esp_mm: new virtual memory mapping apis via mmu

components/esp_mm/port/esp32h2/ext_mem_layout.c

@@ -0,0 +1,19 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#include <stdlib.h>
+#include <stdint.h>
+#include "sdkconfig.h"
+#include "soc/ext_mem_defs.h"
+#include "../ext_mem_layout.h"
+#include "hal/mmu_types.h"
+
+/**
+ * The start addresses in this list should always be sorted from low to high, as MMU driver will need to
+ * coalesce adjacent regions
+ */
+const mmu_mem_region_t g_mmu_mem_regions[SOC_MMU_LINEAR_ADDRESS_REGION_NUM] = {
+    [0] = {},
+};