fixup! tests: add ztimer test applications

tests/ztimer_overhead/tests/01-run.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+
+# Copyright (C) 2019 Kaspar Schleiser <kaspar@schleiser.de>
+#
+# This file is subject to the terms and conditions of the GNU Lesser
+# General Public License v2.1. See the file LICENSE in the top level
+# directory for more details.
+
+import sys
+from testrunner import run
+
+
+def testfunc(child):
+    child.expect(r"min=\d+ max=\d+ avg=\d+\r\n")
+
+
+if __name__ == "__main__":
+    sys.exit(run(testfunc))