fix some sync error while using python3

Change-Id: I70925e48756c356d48359679d8ad1b9e33a68595
diff --git a/platform_utils.py b/platform_utils.py
index 33cb2ec..a3e9653 100644
--- a/platform_utils.py
+++ b/platform_utils.py
@@ -20,7 +20,12 @@
 import shutil
 import stat
 
-from Queue import Queue
+from pyversion import is_python3
+if is_python3():
+  from queue import Queue
+else:
+  from Queue import Queue
+
 from threading import Thread