Port 4558c1df
https://crrev.com/c/2141654

Original Commit Message:

  As a drive-by, the order of rounding_average_u is adjusted according to
  src/wasm/wasm-opcodes.h.

Change-Id: Ia2d39753f618f10e0795f83daa7e5a63f49f554a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2147578Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#67136}