[PATCH 1/2][ARC] Add BFD_RELOC_ARC_32_PCREL relocation.

[Nick Clifton]

Hi Claudiu,

> ChangeLog BFD:
> 2015-10-20  Cupertino Miranda  <cmiranda@synopsys.com>
>
> 	* reloc.c (BFD_RELOC_ARC_32_PCREL): New entry.
> 	* arc-reloc.def (ARC_32_PCREL): New definition.
> 	(ARC_TLS_DTPOFF): Arrange it in order.
> 	* elf32-arc.c (arc_elf_howto_ini): Update formula.
> 	(get_middle_endian_relocation): New function.
> 	(PDATA): Define.
> 	* bfd-in2.h: Regenerate.
> 	* libbfd.h: Likewise.

Approved and applied.

Note: arc-reloc.def is in the include/elf directory, not the bfd 
directory, so I moved the changelog entry for this particular file to 
that location.

Cheers
   Nick