Add framework_path module

This allows scripts in the scripts/ directory to get the path to the
mbedtls_framework module in framework/scripts/

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/scripts/generate_ssl_debug_helpers.py b/scripts/generate_ssl_debug_helpers.py
index 80d2fc7..a6d1b13 100755
--- a/scripts/generate_ssl_debug_helpers.py
+++ b/scripts/generate_ssl_debug_helpers.py
@@ -14,6 +14,8 @@
 import os
 import textwrap
 import argparse
+
+import framework_path # pylint: disable=unused-import
 from mbedtls_framework import build_tree