scripts: add new min_requirements.py script

This call into the "old" script that has been moved to the framework
repository. The *.requirements.txt files are kept on this repo though.

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>

scripts/min_requirements.py

@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+"""Install all the required Python packages, with the minimum Python version.
+"""
+
+# Copyright The Mbed TLS Contributors
+# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+
+import os
+import framework_scripts_path # pylint: disable=unused-import
+from mbedtls_framework import min_requirements
+
+# The default file is located in the same folder as this script.
+DEFAULT_REQUIREMENTS_FILE = 'ci.requirements.txt'
+
+min_requirements.main(os.path.join(os.path.dirname(__file__),
+                                   DEFAULT_REQUIREMENTS_FILE))