[Benchmark] Upgrade v8.google to TBMv2
[Benchmark] Upgrade v8.google to TBMv2

BUG=chromium:517805,chromium:593793
R=cbruni@chromium.org,nednguyen@chromium.org
CQ_EXTRA_TRYBOTS=tryserver.chromium.perf:winx64_10_perf_cq;tryserver.chromium.perf:mac_retina_perf_cq;tryserver.chromium.perf:linux_perf_cq

Review URL: https://codereview.chromium.org/1884163002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#387331}

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