Add framework/scripts to scripts_path.py

This allows test scripts to find the new mbedtls_framework module.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/tests/scripts/scripts_path.py b/tests/scripts/scripts_path.py
index 5d83f29..ce2afcf 100644
--- a/tests/scripts/scripts_path.py
+++ b/tests/scripts/scripts_path.py
@@ -15,3 +15,6 @@
 sys.path.append(os.path.join(os.path.dirname(__file__),
                              os.path.pardir, os.path.pardir,
                              'scripts'))
+sys.path.append(os.path.join(os.path.dirname(__file__),
+                             os.path.pardir, os.path.pardir,
+                             'framework', 'scripts'))