[NFC][scudo] Add reference to a QEMU bug am: 641941d860 am: e4e7be412a am: 963344c9bc am: be3464023e

Original change: https://android-review.googlesource.com/c/platform/external/scudo/+/1698907

Change-Id: I499fab321d6bf007fadec7be26bec3c18b7e59e0