It is a design decision of pointer compression to allow unaligned pointers,
so disable this check in UBSan.

Bug: v8:7703
Change-Id: I3fab34e77ad755cdef3cd385a3615e3d0e350c16
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1523346
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60235}