Some new firmwares added

NEC just released new firmwares for the x57x series drives. We added the unmodified and RPC1 patched versions 1.12 for the 3570, 1.03 for the 4570 and 1-02 for the 4571. These firmwares should be quite identical except for DVD-RAM and Labelflash support.

Also sections for the new Optiarc drives have been added but don’t expect firmwares for these drives too soon.