bfd/

bfd/
	PR 6893 - Do not consider FDEs for discarded sections as invalid.
	* elf-eh-frame.c (_bfd_elf_parse_eh_frame): New REQUIRE_CLEARED_RELOCS.
	Consider FDEs with cleared relocations as valid and ignorable.

ld/testsuite/
	* ld-elf/eh-group.exp, ld-elf/eh-group1.s, ld-elf/eh-group2.s: New test.

binutils/
	Suppress warnings on NONE relocations to discarded sections.
	* readelf.c (is_none_reloc): New function.
	(debug_apply_relocations): Ignore is_none_reloc() relocations.