Various updates (#60)

- update lvgl to v9.2.0
- update esp_lvgl_port to v2.3.3
- various code correctness improvements

libs/esp_lvgl_port/priv_include/esp_lvgl_port_priv.h

@@ -0,0 +1,47 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/**
+ * @file
+ * @brief ESP LVGL port private
+ */
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Rotation configuration
+ */
+typedef enum {
+    LVGL_PORT_DISP_TYPE_OTHER,
+    LVGL_PORT_DISP_TYPE_DSI,
+    LVGL_PORT_DISP_TYPE_RGB,
+} lvgl_port_disp_type_t;
+
+/**
+ * @brief Rotation configuration
+ */
+typedef struct {
+    unsigned int avoid_tearing: 1;    /*!< Use internal RGB buffers as a LVGL draw buffers to avoid tearing effect */
+} lvgl_port_disp_priv_cfg_t;
+
+/**
+ * @brief Notify LVGL task
+ *
+ * @note It is called from RGB vsync ready
+ *
+ * @param value     notification value
+ * @return
+ *      - true, whether a high priority task has been waken up by this function
+ */
+bool lvgl_port_task_notify(uint32_t value);
+
+#ifdef __cplusplus
+}
+#endif