sh.c (sh_option_override): Make static.

sh.c (sh_option_override): Make static.

	* config/sh/sh.c (sh_option_override): Make static.
	Adjust comments.  Declare.
	(sh_function_value_regno_p): Likewise.
	(sh_register_move_cost): Modify the arguments, make static.
	Adjust comments.  Declare.
	(TARGET_OPTION_OVERRIDE, TARGET_REGISTER_MOVE_COST
	TARGET_FUNCTION_VALUE_REGNO_P): Define.
	* config/sh/sh.h (OVERRIDE_OPTIONS, FUNCTION_VALUE_REGNO_P
	REGISTER_MOVE_COST): Delete.
	* config/sh/sh-protos.h (sh_override_options): Delete.
	(sh_register_move_cost): Delete.
	(sh_function_value_regno_p): Delete.

From-SVN: r163873