* ld.h (args_type): Add new field endian.

	* ld.h (args_type): Add new field endian.
	* lexsup.c (parse_args): Handle -EB and -EL by setting
	command_line.endian.
	* ldgram.y (ifile_p1): Accept OUTPUT_FORMAT with three arguments.
	* ldlang.c (lang_add_output_format): Add arguments big and little.
	If command_line.endian is set, use it to select big or little
	rather than the default.  Changed all callers.
	* ldlang.h (lang_add_output_format): Update declaration.
	* emulparams/elf32mipb.sh: Define BIG_OUTPUT_FORMAT and
	LITTLE_OUTPUT_FORMAT.
	* emulparams/elf32mipl.sh: Likewise.
	* emulparams/mipsbig.sh: Likewise.
	* emulparams/mipsbsd.sh: Likewise.
	* emulparams/mipsidt.sh: Likewise.
	* emulparams/mipsidtl.sh: Likewise.
	* emulparams/mipslit.sh: Likewise.
	* scripttempl/elf.sc: Define BIG_OUTPUT_FORMAT and
	LITTLE_OUTPUT_FORMAT if not already defined.  Pass them to
	OUTPUT_FORMAT.
	* scripttempl/mips.sc: Pass BIG_OUTPUT_FORMAT and
	LITTLE_OUTPUT_FORMAT to OUTPUT_FORMAT.
	* scripttempl/mipsbsd.sc: Likewise.