BE machines use a 4 byte bias to spill/fill 32-bit values on
the stack. This is done so because TF always fills 64-bit values
even if the spilled value was 32-bits. To make sure this holds between
LO and TF we have added a 4 byte bias in this CL:
crrev.com/c/2756712

LoadSpillAddress needs to also take this into account and
add a bias if the spilled value was 4 bytes.

Change-Id: Ibd2b2071ce1fb11a9c5884611ae8edd1f17cb0c9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3891196
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83163}