Add gdeepti and bbudge, remove aseemgarg.

Change-Id: I87a9e0b36b1233aae5fb72d019e9b8b413d10f9e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1680799Reviewed-by: Bill Budge <bbudge@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62432}