Drive-by fix: Fix some typos in comments.

Bug: v8:12319
Change-Id: Ieb4f9ab26bd4e07125ff17df9c048681733cf758
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3222263Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Hao A Xu <hao.a.xu@intel.com>
Cr-Commit-Position: refs/heads/main@{#77570}