[AArch64][3/3] LD support BFD_RELOC_AARCH64_TLSLD_ADR_PREL21

[Nicholas Clifton]

Hi Jiong,

> 2015-07-10  Jiong Wang  <jiong.wang@arm.com>
>
> bfd/
>    * elfnn-aarch64.c (IS_AARCH64_TLS_RELOC): Recognize
>    BFD_RELOC_AARCH64_TLSLD_ADR_PREL21.
>    (aarch64_reloc_got_type): Ditto.
>    (elfNN_aarch64_final_link_relocate): Ditto.
>    (elfNN_aarch64_relocate_section): Ditto.
>    (elfNN_aarch64_gc_sweep_hook): Ditto.
>    (elfNN_aarch64_check_relocs): Ditto.
>    * elfxx-aarch64.c (_bfd_aarch64_elf_put_addend): Ditto.
>    (_bfd_aarch64_elf_resolve_relocation): Ditto.
>
> ld/testsuite/
>    * ld-aarch64/tls-tiny-ld.s: New file.
>    * ld-aarch64/tls-tiny-ld.d: Ditto.
>    * ld-aarch64/aarch64-elf.exp: Run new test.

Approved - please apply.

Cheers
   Nick