`ldu` requires offset to be 4 byte aligned.
Moving it under `GenerateMemoryOperationWithAlign`.

Change-Id: I9f15a3e4d04f5381d0fb74abdd2f4d9160bc7243
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3629345Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#80380}