Tag easy suppressions with their sanitizer

These ignorelists are associated with a single sanitizer so, apart from
oversuppressions sneaking through, this one should be fairly
straightforward.

Bug: 342214574
Change-Id: If9ac2d3abbfff07c744e9f46ef2edd4ab5b425fd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5559453
Auto-Submit: David Benjamin <davidben@chromium.org>
Commit-Queue: David Benjamin <davidben@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1306775}
NOKEYCHECK=True
GitOrigin-RevId: 3626b52ae221cdc0f68e138859f548ba44a24f6d
2 files changed