Makefile for psnr tool

BUG=204
TESTED=make
Review URL: https://webrtc-codereview.appspot.com/1215007

git-svn-id: http://libyuv.googlecode.com/svn/trunk@613 16f28f9a-4ce2-e073-06de-1de4eb20be90

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 611
+Version: 613
 License: BSD
 License File: LICENSE
 

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 611
+#define LIBYUV_VERSION 613
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT

util/Makefile

+psnr: psnr.cc ssim.cc psnr_main.cc
+	$(CXX) -msse2 -O3 -fopenmp -o psnr psnr.cc ssim.cc psnr_main.cc