We can detect the sequence during instruction selection and
if possible emit a single load/store byte reversed opcode instead
of doing the same separately (i.e load/store and then reverse).

Change-Id: Ib7d0c8c7105382637c33cafac5b5f4e23e8e553d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2950243Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#75076}