* Add new port for score.

ChangeLog

gcc/config.gcc

gcc/config/score/crti.asm

gcc/config/score/crtn.asm

gcc/config/score/elf.h

gcc/config/score/mac.md

gcc/config/score/misc.md

gcc/config/score/mul-div.S

gcc/config/score/predicates.md

gcc/config/score/score-conv.h

gcc/config/score/score-mdaux.c

gcc/config/score/score-mdaux.h

gcc/config/score/score-modes.def

gcc/config/score/score-protos.h

gcc/config/score/score-version.h

gcc/config/score/score.c

gcc/config/score/score.h

gcc/config/score/score.md

gcc/config/score/score.opt

gcc/config/score/score7.md