[arm64] Fix.

TBR=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/444663002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22881 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix Native Client build.

TBR=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/442783002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22882 ce2b1a6d-e550-0410-aec6-3dcde31c8c00