* monitor.[ch], op50-rom.c, rom68k-rom.c, w89k-rom.c: Add support

	* monitor.[ch], op50-rom.c, rom68k-rom.c, w89k-rom.c: Add support
	to monitor config structure for supported baud rates for a target
	and variable stop bits.
	* monitor.c (monitor_fetch_register): Store register values in big
	endian format on any host.