This adds avx for extractps, insertps, and cvtdq2ps. These require
SSE4_1, so modified AvxHelper to take another template arg for sse4
operations, and open the proper cpu scope before calling this arg.

Bug: v8:9561
Change-Id: Iad2be7ebab41b96f7eb74f4e2bd9776002e6a76c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1874378
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64529}