Add --input-type and --output-type to elfedit

Add --input-type and --output-type to elfedit

binutils/

2010-01-08  H.J. Lu  <hongjiu.lu@intel.com>

	* elfedit.c (input_elf_type): New.
	(output_elf_type): Likewise.
	(elf_type): Likewise.
	(update_elf_header): Support updating ELF file type.
	(command_line_switch): Add OPTION_INPUT_TYPE and
	OPTION_OUTPUT_TYPE.
	(options): Likewise.
	(usage): Add --input-type and --output-type.
	(main): Handle OPTION_INPUT_TYPE and OPTION_OUTPUT_TYPE.  Check
	one of --output-mach and --output-type must be specified.

	* doc/binutils.texi: Document --input-type and --output-type
	for elfedit.

binutils/testsuite/

2010-01-08  H.J. Lu  <hongjiu.lu@intel.com>

	* binutils-all/elfedit-2.d: New.

	* binutils-all/elfedit.exp: Run elfedit-2.