add list of files that setlinks generates.  This list comes from webrtc .gitignore
add list of files that setlinks generates.  This list comes from webrtc .gitignore

R=brucedawson@chromium.org
BUG=none
TESTED=untested

Review URL: https://webrtc-codereview.appspot.com/58439004.

yarrcc/libyuv-ios,lemenkov/libyuv,disigma/yuv,disigma/yuv,yarrcc/libyuv-ios,lemenkov/libyuv,yarrcc/libyuv-ios,yarrcc/libyuv-ios,lemenkov/libyuv,disigma/yuv,lemenkov/libyuv