[LinuxBIOS] ADLO

[Lu, Yinghai]

I clean the ADLO for LBv2. (we don't need VGA rom, and pirqtable etc.
LinuxBIOS already have that)

but got unknown device for HD.

Can test that in your platform?

Later 
1. we can put acpi tables and irqtables at [0xf9000, 0xfcc00), let
loader.s not to overwrite that. ( need to update tables.c, and loader.s)
2. prepare the e820 table and put that on some positon at [0xf9000,
0xfcc00) for bochs. ( need to update linuxbios_table.c)

Thanks

Yinghai Lu