binutils:
    Merge commit 'e4ef1b6c3fee295ab41138bf77a82dff16f1d7c3' into avr-mainline

    Conflicts:
        bfd/elf32-avr.c
        bfd/reloc.c
        gas/config/tc-avr.c
        include/elf/avr.h
        ld/testsuite/ld-avr/avr.exp
    Prune {(incompletely) duplicated} symbol difference processing,
    leaving just testcase additions, and gas suport for -mlink-relax
    merge ld/testsuite/ld-avr/avr.exp

gcc:
	* config/avr/avr.h (ASM_SPEC): Add -%{mrelax: --mlink-relax}.
	* config/avr/gen-avr-mmcu-specs.c (print_mcu) <asm>: Likewise.