* config/mn10300/mn10300-opts.h: New.
	* config/mn10300/mn10300.c (mn10300_processor,
	mn10300_tune_string): Remove.
	(mn10300_handle_option): Don't assert that global structures are
	in use.  Access mn10300_processor via opts pointer.  Don't handle
	OPT_mtune_ here.
	* config/mn10300/mn10300.h (enum processor_type): Move to
	mn10300-opts.h.
	(mn10300_processor): Remove.
	* config/mn10300/mn10300.opt (config/mn10300/mn10300-opts.h): New
	HeaderInclude entry.
	(mn10300_processor): New Variable entry.
	(mtune=): Use Var.

From-SVN: r171323