* elf32-arc.c (tls_type_e): Add GOT_TLS_LE.
        (arc_plugin_one_reloc) <PLT32>: Don't scribble over add or nop.
        (arc_tls_transition): New function.
        (elf_arc_check_relocs): Find tls type of global symbols first.
        Use arc_tls_transition.
        (elf_arc_relocate_section): Use arc_tls_transition.