From Catherine Moore, Michael Meissner, Richard Sandiford:
* configure.in: Support frv*-*-*.
* frv/Makefile.in: New file.
* frv/configure: New file.
* frv/configure.in: New file.
* frv/crt0.S: New file.
* frv/fstat.c: New file.
* frv/getpid.c: New file.
* frv/isatty.c: New file.
* frv/kill.c: New file.
* frv/print.c: New file.
* frv/putnum.c: New file.
* frv/sbrk.c: New file.
* frv/sim-close.S: New file.
* frv/sim-exit.S: New file.
* frv/sim-inbyte.c: New file.
* frv/sim-lseek.S: New file.
* frv/sim-open.S: New file.
* frv/sim-read.S: New file.
* frv/sim-time.c: New file.
* frv/sim-unlink.S: New file.
* frv/sim-write.S: New file.
* frv/stat.c: New file.
