Simd unsupported in simulator and some machines on mips.

Original Commit Message:

  As of https://crrev.com/c/2629465, Simd tests cannot pass on
  architectures without Simd support. Tests will need to be
  re-enabled once Simd support is fully implemented on PPC.

Port: aaacffa1
Change-Id: Ic7451211cbe2bfa13952b994ea440189620579cd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2717158
Auto-Submit: Liu yu <liuyu@loongson.cn>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#73067}