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

Change-Id: Ia26b82de3f0af076ace3d53e285917029d2d5ac4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3407794Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#78746}