[coreboot] [PATCH] basic realmode handlers for int 0x10 and int 0x16

[Myles Watson]

My Jmicron SATA card writes the name of the hard drive to the screen.
This redirects that output to the console and implements a basic
keyboard stub.

Signed-off-by: Myles Watson

It makes the image a little bit larger (512 bytes after compression),
so I'm wondering if I should wrap it in a Kconfig option.  It doesn't
seem worth the mess in the code for such a little bit of space.

Thanks,
Myles