Update to test scripts to work with both ModemManager and Cromo

test/mm-reset

Index: test/mm-reset
diff --git a/test/mm-reset b/test/mm-reset
index 2e9175a79cde9a8ce06a8d9619917feae4365ecb..dbd71983d15cdd8adfd8077c88c66ad86deef790 100644
--- a/test/mm-reset
+++ b/test/mm-reset
@@ -1,5 +1,9 @@
 #!/usr/bin/python
 
+# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
 import dbus
 import mm
 import sys
@@ -17,7 +21,6 @@ if len(sys.argv) < 2:
 else:
 	modem_pattern = sys.argv[1]
 
-manager = mm.ModemManager()
-target = mm.PickOneModem(manager, modem_pattern)
-gobi_modem = manager.GobiModem(target)
+(manager, path) = mm.PickOneModem(modem_pattern)
+gobi_modem = manager.GobiModem(path)
 gobi_modem.SoftReset()