We need to also check SIMD support for v128.const and i8x16.shuffle,
these are separate functions, not part of the SimdOp or SimdLaneOp.

This was discovered while running some JS tests when trying to stage
SIMD.

Bug: v8:10835
Change-Id: I51c6e65cc9397058e0be83cf4116ab4bfe4c4ec9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2391332Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69751}