isolinux: add more rows to accomodate more entries

isolinux/isolinux.cfg.in

@@ -8,7 +8,7 @@ MENU AUTOBOOT BIOS default device boot in # second{,s}...
 MENU BACKGROUND @@SPLASHIMAGE@@
 MENU WIDTH 78
 MENU MARGIN 1
-MENU ROWS 9
+MENU ROWS 12
 MENU VSHIFT 2
 MENU TIMEOUTROW 13
 MENU TABMSGROW 2