feat(rng): basic rng support on ESP32-H21

components/bootloader_support/src/bootloader_random_esp32h21.c

@@ -0,0 +1,18 @@
+/*
+ * SPDX-FileCopyrightText: 2026 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#include "sdkconfig.h"
+#include "bootloader_random.h"
+
+
+void bootloader_random_enable(void)
+{
+
+}
+
+void bootloader_random_disable(void)
+{
+
+}