Set arch on deviant

roles/netbootxyz/templates/menu/devuan.ipxe.j2

@@ -7,6 +7,7 @@ goto ${menu}
 
 :devuan
 set os Devuan
+set os_arch ${arch}
 iseq ${os_arch} x86_64 && set os_arch amd64 ||
 clear devuan_version
 clear older_release