Also adding to and modifying some of the F32x4 operations.

Change-Id: Ia57dcd70a3bad2f1ec4ccc64ff2cb02b9c83aa22
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2081832Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#66539}