Update the wasm spec tests to include the memory64 proposal. Some tests
are failing currently because of broken spec tests or missing v8
support. This will be addressed in follow-up CLs.

R=ahaas@chromium.org
CC=zhin@chromium.org

Bug: v8:11401
Change-Id: I1a8f75e70f9d0828ad32c960c113f5e4c0d1a44b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2679683
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72561}