This fixes a typo that meant we stopped generating debugging information
in the JIT dump for perf to consume.

Change-Id: I75c8905617ac6e03fb522639f36a8137f3f124e9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2593253Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Pierre Langlois <pierre.langlois@arm.com>
Cr-Commit-Position: refs/heads/master@{#71770}