Implements f64x2 ceil, floor, trunc, nearestint, for interpreter and
x64.

Bug: v8:10553
Change-Id: I12a260a3b1d728368e5525d317d30fc9581cae04
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2213082
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68241}