* gdbserver/low-sun3.c: New file.
* gdbserver/Makefile.in, config/m68k/sun3.mh: Change accordingly.
* Rename files for 14-character limits:
gdbserver/remote-gutils.c -> gdbserver/utils.c
gdbserver/remote-inflow.c -> gdbserver/low-lynx.c
gdbserver/remote-inflow-sparc.c -> gdbserver/low-sparc.c
gdbserver/remote-server.c -> gdbserver/server.c
remote-monitor.c -> remote-mon.c
* Makefile.in, gdbserver/Makefile.in, config/m68k/monitor.mt,
config/i386/i386lynx.mh, config/sparc/sun4os4.mh: Change accordingly.
* gdbserver/Makefile.in: Remove more junk inherited from gdb Makefile.