fix: fix the xhci pt in gui-vm

Signed-off-by: Brian McGillion <bmg.avoin@gmail.com>

Author: brianmcgillion

modules/microvm/sysvms/guivm.nix

@@ -270,6 +270,8 @@ let
 
             qemu = {
               extraArgs = [
+                "-device"
+                "qemu-xhci"
                 "-device"
                 "vhost-vsock-pci,guest-cid=${toString config.ghaf.networking.hosts.${vmName}.cid}"
               ];