Fix opensuse on virtualbox

sources/virtualbox-iso.pkr.hcl

@@ -19,13 +19,15 @@ source "virtualbox-iso" "amd64" {
   memory                 = local.memory
   headless               = var.headless
   firmware               = "efi"
-  guest_os_type          = "Linux_64"
+  guest_os_type          = var.vbox_os_type
   guest_additions_url    = "http://download.virtualbox.org/virtualbox/7.0.10/VBoxGuestAdditions_7.0.10.iso"
   guest_additions_sha256 = "bbabd89b8fff38a257bab039a278f0c4dc4426eff6e4238c1db01edb7284186a"
+  nic_type               = "virtio"
+  gfx_vram_size          = 128
   vboxmanage = [
     ["modifyvm", "{{ .Name }}", "--uart1", "0x3F8", "4"],
     #["modifyvm", "{{ .Name }}", "--uartmode1", "file", "output/vritualbox/serial-${var.arch}-${var.distro}-${var.version}"],
-    ["modifyvm", "{{ .Name }}", "--nat-localhostreachable1", "on"],
+    ["modifyvm", "{{ .Name }}", "--nat-localhostreachable1", "on"]
   ]
 
   http_content   = var.http_files