fix(darwin): don't configure SPICE device on darwin

quickemu

@@ -1109,9 +1109,12 @@ function vm_boot() {
     fi
 
     # shellcheck disable=SC2054
-    args+=(-device virtio-rng-pci,rng=rng0
-        -object rng-random,id=rng0,filename=/dev/urandom
-        -device "${USB_HOST_PASSTHROUGH_CONTROLLER}",id=spicepass
+    args+=(-device virtio-rng-pci,rng=rng0 -object rng-random,id=rng0,filename=/dev/urandom)
+
+    # macOS doesn't support SPICE
+    if [ ${DARWIN} -eq 0 ]; then
+        # shellcheck disable=SC2054
+        args+=(-device "${USB_HOST_PASSTHROUGH_CONTROLLER}",id=spicepass
             -chardev spicevmc,id=usbredirchardev1,name=usbredir
             -device usb-redir,chardev=usbredirchardev1,id=usbredirdev1
             -chardev spicevmc,id=usbredirchardev2,name=usbredir
@@ -1119,8 +1122,7 @@ function vm_boot() {
             -chardev spicevmc,id=usbredirchardev3,name=usbredir
             -device usb-redir,chardev=usbredirchardev3,id=usbredirdev3
             -device pci-ohci,id=smartpass
-        -device usb-ccid
-    )
+            -device usb-ccid)
 
         if ${QEMU} -device help | grep -q smartcard; then
             # shellcheck disable=SC2054
@@ -1129,6 +1131,7 @@ function vm_boot() {
         else
             echo " - WARNING!  ${QEMU} was not compiled with support for smartcard devices"
         fi
+    fi
 
     # setup usb-controller
     if [ "${usb_controller}" == "ehci" ]; then