Update libyuv to r397

Change-Id: I70f5a527de52ae8ae80b189873c9a094035dfa2c
Signed-off-by: Hendrik Dahlkamp <hendrik@google.com>
diff --git a/README.google b/README.google
index 79828ab..c887302 100644
--- a/README.google
+++ b/README.google
@@ -1,10 +1,11 @@
-URL: http://libyuv.googlecode.com/svn-history/r52/trunk/
-Version: r52
+URL: http://libyuv.googlecode.com/svn-history/r397/trunk/
+Version: r397
 License: BSD
 License File: LICENSE
 
 Description:
-libyuv is an open-source library for yuv conversion and scaling.
+libyuv is an open-source library for yuv scaling, conversion, comparison
+and rendering.
 Specifically libyuv is optimized for SSE2/SSSE3 and Neon and has demonstrated
 speed up to 10x to 16x compared to C code.