This combines flags switching off CPU-features randomly with all
other flags on the numfuzz fuzzers.

In a follow up we can add also other interesting flags for testing
more features.

Bug: chromium:1021463
No-Try: true
Change-Id: Ia27d1b8b82dff2bf497242b30ec0b6ef2dfd722d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1905846
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64858}