Added submodule contents into tree

externals/mbedtls/tests/make-in-docker.sh

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+#!/bin/bash -eu
+
+# make-in-docker.sh
+#
+# Purpose
+# -------
+# This runs make in a Docker container.
+#
+# See also:
+# - scripts/docker_env.sh for general Docker prerequisites and other information.
+#
+# WARNING: the Dockerfile used by this script is no longer maintained! See
+# https://github.com/Mbed-TLS/mbedtls-test/blob/master/README.md#quick-start
+# for the set of Docker images we use on the CI.
+
+# Copyright The Mbed TLS Contributors
+# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+
+source tests/scripts/docker_env.sh
+
+run_in_docker make $@