[libfuzzer] Add new builders for V8 simulators

This adds release and debug archive builders for libfuzzer with V8
arm simulator.

Corresponding recipe changes:
https://crrev.com/c/1402524

TBR=jbudorick@chromium.org

Bug: 916999
Change-Id: I35cbcc6422572771cb82000d7475404ff6b529c5
Reviewed-on: https://chromium-review.googlesource.com/c/1402777
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#621147}
5 files changed