[sparkplug] Use a zone array to store labels

Allocate an array big enough to store label data for each byte in the
bytecode array. Use a linked list to store linked labels, and combine
the list with a pointer for an unlinked label.

Bug: v8:11429
Change-Id: Iadf00801f6ddd4460f7e0e1b53eee7be333f66e8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2704542


Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72865}