... for PC-relative builtin calls/jumps and explicitly use near_call /
near_jump instructions.

This is a step towards
1) removing the RelocInfo::RUNTIME_ENTRY which was temporarily used
   for this purpose,
2) being able to remap embedded builtins into the code range multiple
   times.

Bug: v8:11527
Change-Id: Ife26c8bbc524be0b07f333776716f22bd4bd36aa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3866190
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82884}