Off-by-one error - valid shuffle values are [0..31] (inclusive).

Bug: chromium:1092013
Change-Id: Ic9edd79acb148fd2061869a1765b9a50e38403ae
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2239754Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68307}