Additionally, reduce the maximum times a loop can be unrolled to 5.

Bug: v8:11298
Change-Id: Ia3cc5955c91e70abf388e08bdc37aba998b34b93
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2953297Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75118}