[v8.x] deps: V8: cherry-pick 3cc6919

Original commit message:

PPC: fix Regex addi overflow

using add insetad of addi when Operand is more than 16 bits long

Change-Id: I7f9452381ed8b321ec71e68d0d90485508b69885
Reviewed-on: https://chromium-review.googlesource.com/c/1430619
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#59049}

Refs: https://github.com/v8/v8/commit/3cc69194b5ee967d0386fdd47de7a84141fef8cc

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• commit message follows commit guidelines