Bug#982840: linux-image-5.10.0-3-arm64: requesting scsi_debug.ko for arm64/armhf helping systemd autopkgtest

[Ryutaroh Matsumoto]

Control: retitle -1 requesting scsi_debug.ko for arm64&armhf&ppc64el helping 
systemd&udisks2 autopkgtest

Lack of scsi_debug.ko is also observed for ppc64el.
Ryutaroh