[PATCH] x86: start early_printk at sensible screen row

Use boot info to start early_printk() at the current row on VGA console, as
left by the boot loader.

Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com>
Cc: Stas Sergeev <stsp@aknet.ru>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>