feat(openthread): update openthread submodule and border router lib

components/openthread/include/esp_radio_spinel_platform.h

@@ -0,0 +1,28 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#include "sdkconfig.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief  Get frame counter.
+ *
+ * @param[in]  idx   The index of 802.15.4 related protocol stack.
+ *
+ * @return
+ *      - The frame counter
+ *
+ */
+uint32_t esp_radio_spinel_extern_get_frame_counter(esp_radio_spinel_idx_t idx);
+
+#ifdef __cplusplus
+}
+#endif