Add entropy_poll.h in port directory

components/mbedtls/port/include/entropy_poll.h

@@ -0,0 +1,28 @@
+/**
+ * Mbedtls entropy_poll.h file
+ * SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#ifndef MBEDTLS_ENTROPY_POLL_H
+#define MBEDTLS_ENTROPY_POLL_H
+#include "mbedtls/build_info.h"
+#include <stddef.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief           Entropy poll callback for a hardware source
+ *
+ *
+ * \note            This must accept NULL as its first argument.
+ */
+int mbedtls_hardware_poll( void *data,
+                           unsigned char *output, size_t len, size_t *olen );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* entropy_poll.h */