Change the codegen for f32x4.extract_lane from shufps to insertps. They
have the same performance, but shufps has a false dependency on dst (it
shuffles dst and src, but we don't care about dst at all).

We then merge the SSE and AVX opcode.

Bug: v8:11217
Change-Id: I7cdbf486573ce3a19881df84400a9c7e09c3ee48
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2585259Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71748}