Run benchmarks tests with --turbo-asm flag.

R=machenbach@chromium.org, mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/646373002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24549 ce2b1a6d-e550-0410-aec6-3dcde31c8c00