hikaru/gpu: fix 'jump' disasm
vk-games.json: fix BRAVEFF.

To support the MAME 0.149 dumps.
vk-games.json: fix SGNASCAR.

The MASKROMs must be interleaved, dammit. Passes the ROMBD test now.
hikaru/memctl: fix BRAVEFF.

Passes the ROMBD test now.