Macros in scsi

• b2tol scsi/cd.c:1336
• Debugger scsi/cd.c:57
• DSTY scsi/st.c:67
• MAKESDDEV scsi/sd.c:66
• MODE scsi/ch.c:47
• p2copy scsi/ch.c:561
• p4copy scsi/ch.c:562
• PARTITION scsi/cd.c:68
• UNIT scsi/cd.c:70
• WHOLE_DISK scsi/sd.c:72