linux-lts: Power off hangs in qemu-system-arm with the linux-virt armv7 kernel
To reproduce:
qemu-system-arm -M virt -m 512M -cpu cortex-a7 \
-drive if=pflash,format=raw,file=/usr/share/qemu/edk2-arm-code.fd,readonly=on \
-drive if=virtio,file=alpine-virt-3.16.0_rc5-armv7.iso \
-serial stdio
When powering it off it hangs:
* Terminating remaining processes ...[ 49.127699] reboot: System halted