This reduces the size per runtime stub slot by using the same sequence
we plan to use for far jumps.
Note that alignment is not an issue here, since runtime stub slots are
never patched.

R=mstarzinger@chromium.org
CC=joey.gouly@arm.com

Bug: v8:9477
Change-Id: Ib8f0f7b4930617b9c16dc54f6773572c70b681c4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784292
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63567}