Reduced usage of xmm6 and xmm7 which need to be saved on win64.
BUG=none
TEST=tested with talk unittests
Review URL: http://webrtc-codereview.appspot.com/261003

git-svn-id: http://libyuv.googlecode.com/svn/trunk@55 16f28f9a-4ce2-e073-06de-1de4eb20be90
1 file changed