hw/uefi: account variable policy entries against storage size uefi-vars already tracks (and limits) the memory footprint of UEFI variables. Do that for variable policies too. Fixes: CVE-2026-61405 Resolves: https://gitlab.com/qemu-project/qemu/-/work_items/3890 Acked-by: Luigi Leonardi <leonardi@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-ID: <20260720143244.821889-5-kraxel@redhat.com>