Comment 6 for bug 1988527

Thanks, this last comment on "no shortage of options to set the accelerator" made me discover that autopkgtest_qemu.py has code to enable kvm on ppc64 via -enable-kvm if /dev/kvm is present, but for some reason it is not working. My impression at the moment is that the machine fails to be detected as kvm capable due to a mismatch between the dpkg arch name and the `uname -m` arch name (ppc64el / ppc64le). Investigating in this direction.