Defines in src/md-68k

• CFLG src/md-68k/m68k.h:28
• NFLG src/md-68k/m68k.h:27
• VFLG src/md-68k/m68k.h:29
• XFLG src/md-68k/m68k.h:30
• ZFLG src/md-68k/m68k.h:26