vbox guests need name

nixos-modules/guest-vbox-linux.nix

@@ -96,6 +96,8 @@ in {
         }.${cfg.bootFormat};
 
       in {
+        inherit name;
+        value = {
 
           inherit (cfg) routeToNics;
 
@@ -114,6 +116,7 @@ in {
               , vmName = "${vmName}"
               }
           '';
+        };
       }) config.genode.vbox.guests;
 
   };