NetBSD 9.2 freezes when CPU is set to 'Default'

**Describe the issue**
When attempting to boot NetBSD 9.2, it freezes. User needs to change CPU to something like "cortex-a72" in order for system to be bootable.

Works with qemu
`qemu-system-aarch64 -M virt,highmem=off -accel hvf -cpu host -smp 4 -m 4096 -drive file=pflash0.img,format=raw,if=pflash,readonly=on -drive file=pflash1.img,format=raw,if=pflash -device ramfb -display default,show-cursor=on -device qemu-xhci -device usb-kbd -device usb-tablet -device intel-hda -device hda-duplex -drive file=arm64.img -drive file=fbsd.img,if=virtio,cache=writethrough -device virtio-rng-pci -cpu cortex-a72`

But when I remove `-cpu cortex-a72` the error occurs.

**Configuration**
* UTM Version: 3.0.3 (beta)
* OS Version: macOS Monterey 12.1
* Intel or Apple Silicon? Apple Silicon

**Crash log**
UTM did not crash.

**Debug log**
[debug.log](https://github.com/utmapp/UTM/files/7877813/debug.log)

**Upload VM**
[config.txt](https://github.com/utmapp/UTM/files/7877822/config.txt)