Fix keyboard LEDs.
-Improve option rom handling. A real bios can copy the option roms
-from PCI space. Also, there is no handling for BCVs today. Verify
-option roms wont stomp on seabios stack and bss.
-
-Clean up and clarify usage/scope of .bss and .data variables.
-
Review changes committed to coreboot, virtualbox, qemu, kvm, and bochs
cvs tip.
* bochs cvs 20081016: -- better post resume support