Enable serial in simulcast with local terminal on yeeloong

kern/mips/yeeloong/init.c

@@ -37,6 +37,8 @@ extern void grub_bitmap_init (void);
 extern void grub_font_init (void);
 extern void grub_gfxterm_init (void);
 extern void grub_at_keyboard_init (void);
+extern void grub_serial_init (void);
+extern void grub_terminfo_init (void);
 
 /* FIXME: use interrupt to count high.  */
 grub_uint64_t
@@ -183,6 +185,9 @@ grub_machine_init (void)
   grub_gfxterm_init ();
 
   grub_at_keyboard_init ();
+
+  grub_terminfo_init ();
+  grub_serial_init ();
 }
 
 void