start-sanitize-tic80

start-sanitize-tic80
	* config/tic80/tic80.mt:
	(GDBSERVER-DEPFILES, GDBSERVER_LIBS): Define for gdbserver.
	(SIM): Remove -lm to prevent make errors.
	* configure.tgt: add gdbserver to configdirs for tic80.
end-sanitize-tic80
	* gdbserver/utils.c (error): Change prototype to match defs.h.
	* gdbserver/low-sim.c: Change simulator calls to use new interface.
	* remote.c (remote_write_bytes): Include '$' at start of packet
	and checksum at end of packet in overhead calculation.