update submodule version 3.16.1

Signed-off-by: Steve Jeong <steve@how2flow.net>
diff --git a/setup.py b/setup.py
index f8721a4..cc7d8ac 100644
--- a/setup.py
+++ b/setup.py
@@ -64,7 +64,7 @@
 
 setup(
     name = 'odroid_wiringpi',
-    version = '3.15.3',
+    version = '3.16.1',
     ext_modules = [ _odroid_wiringpi ],
     py_modules = ["odroid_wiringpi"],
     install_requires=[],