tests: Use a more compact summary of test results

Do not print the potentially long list of passed test cases. In case of
failure(s), make sure the failed test list is the last item in the
report.

Signed-hostap: Jouni Malinen <j@w1.fi>

tests/hwsim/run-tests.py

@@ -104,10 +104,12 @@ def main():
     if not test_filter:
         reset_devs(dev, apdev)
 
-    print "passed tests: " + str(passed)
-    print "failed tests: " + str(failed)
+    print
     if len(failed):
+        print "passed " + str(len(passed)) + " test case(s)"
+        print "failed tests: " + str(failed)
         sys.exit(1)
+    print "passed all " + str(len(passed)) + " test case(s)"
 
 if __name__ == "__main__":
     main()