Add qemu board (kvm) docker support for qubesos tests (vnc + vmx)

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QubesOS OpenQA does: https://openqa.qubes-os.org/tests/174009/logfile?filename=autoinst-log.txt#line-60

`[2026-04-21T23:41:06.457759Z] [debug] [pid:3531177] starting: /usr/bin/qemu-system-x86_64 -device VGA,edid=on,xres=1024,yres=768 -chardev ringbuf,id=serial0,logfile=serial0,logappend=on -serial chardev:serial0 -audiodev none,id=snd0 -device intel-hda -device hda-output,audiodev=snd0 -global isa-fdc.fdtypeA=none -m 8192 -machine q35,kernel-irqchip=split -cpu host,+vmx,+invtsc -netdev user,id=qanet0 -device e1000e,netdev=qanet0,mac=52:54:00:12:34:56 -object rng-random,filename=/dev/urandom,id=rng0 -device virtio-rng-pci,rng=rng0 -boot once=d -device qemu-xhci -device usb-tablet -smp 2 -enable-kvm -no-shutdown -vnc :93,share=force-shared -device virtio-serial -chardev pipe,id=virtio_console,path=virtio_console,logfile=virtio_console.log,logappend=on -device virtconsole,chardev=virtio_console,name=org.openqa.console.virtio_console -chardev pipe,id=virtio_console_user,path=virtio_console_user,logfile=virtio_console_user.log,logappend=on -device virtconsole,chardev=virtio_console_user,name=org.openqa.console.virtio_console_user -chardev socket,path=qmp_socket,server=on,wait=off,id=qmp_socket,logfile=qmp_socket.log,logappend=on -qmp chardev:qmp_socket -S -device intel-iommu,intremap=on -device virtio-scsi-pci,id=scsi0 -blockdev driver=file,node-name=hd0-file,filename=/var/lib/openqa/pool/3/raid/hd0,cache.no-flush=on -blockdev driver=qcow2,node-name=hd0,file=hd0-file,cache.no-flush=on,discard=unmap -device scsi-hd,id=hd0-device,drive=hd0,serial=hd0 -blockdev driver=file,node-name=cd0-overlay0-file,filename=/var/lib/openqa/pool/3/raid/cd0-overlay0,cache.no-flush=on -blockdev driver=qcow2,node-name=cd0-overlay0,file=cd0-overlay0-file,cache.no-flush=on,discard=unmap -device scsi-cd,id=cd0-device,drive=cd0-overlay0,serial=cd0`

Start with the referenced QubesOS OpenQA test log and the shown qemu-system-x86_64 command to determine which Docker test entry point needs support for VNC and VMX. Done means the QubesOS test can run with the listed qemu options, including KVM, VNC, and VMX, inside Docker.

Written by the indexing model from the issue text.