Declare CopyRow_AVX as using xmm usage, not ymm. Should resolve chromium build…

Declare CopyRow_AVX as using xmm usage, not ymm. Should resolve chromium build error for Android Atom.
BUG=libyuv:369
TESTED=untested
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/31609004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1118 16f28f9a-4ce2-e073-06de-1de4eb20be90

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 1116
+Version: 1118
 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 1116
+#define LIBYUV_VERSION 1118
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT

source/row_posix.cc

@@ -2242,7 +2242,7 @@ void CopyRow_AVX(const uint8* src, uint8* dst, int count) {
   :
   : "memory", "cc"
 #if defined(__SSE2__)
-    , "ymm0", "ymm1"
+    , "xmm0", "xmm1"
 #endif
   );
 }