Fix skipping 0270 code when searching for disasm prefixes
Fix skipping 0270 code when searching for disasm prefixes

The 0270 code was incorrectly entered as 270 (decimal), which meant
that instructions with vex but no .nds got misfiled in the improper
opcode tables.

turingstudio/nasm,projedi/nasm,Distrotech/nasm,turingstudio/nasm,projedi/nasm,techkey/nasm,letolabs/nasm,Distrotech/nasm,turingstudio/nasm,Distrotech/nasm,turingstudio/nasm,projedi/nasm,Distrotech/nasm,techkey/nasm,projedi/nasm,techkey/nasm,letolabs/nasm,techkey/nasm,techkey/nasm,projedi/nasm,letolabs/nasm