SEL32: start code cleanup.
SEL32: add mfp and mfp scsi disk intitial support code.
SEL32: add new files sel32_mfp.c and sel32_scsi.c to makefile.
SEL32: modify sel32_mt.c code to define tape as BTP for UTX.
SEL32: Fix ADFD, SUFD, MPFD, DVFD instructions display.
SEL32: Change console output to handle 8 bit parity for UTX.
SEL32: Correct RPSWT instruction for V9 processor.
SEL32: Reverse scan order of channel complete and interrupts.
SEL32: Move memory and map register r/w macros to sel32_defs.h.