Hi,
Granted, CONFIG_OPTIONROMS_DEPLOYED isn't terribly useful - it's probably about time all that code was just removed. (Or at least set to depends on QEMU.)
IMO it can go away. The corresponding code in qemu is gone since 0.12, so you'll break seabios for qemu 0.11 + older (that are those releases which ship with bochs bios ...).
cheers, Gerd