Implementations are added to macro-assembler to be shared between
liftoff and code generator.

Change-Id: Ibe326a80f71cad41dadbb62ebbcb9b8797f1871f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3384540Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#78593}