legal minimal dsp irom replacement, good enough for zelda ucode games…

… only (useful for gc/wii owners, who are unable to dump their irom and would like to use dolphin DSPLLE)

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7689 8ced0084-cf51-0410-be5f-012b33b47a6e