[PATCH] [ELF] Prevent ARM ELF object writer from generating deprecated relocation code R_ARM_PLT32

[Jyoti Allur]

Hi rafael, compnerd,

This patch implements 
4.6.1.11 Deprecated relocations of ARM IHI 0044E
Deprecated relocations are in the process of being retired from the specification and may be removed or marked 
obsolete in future revisions. An object file containing these codes is still conforming, but producers should be 
changed to use the new alternatives.

Relocation                           Replacement
R_ARM_PLT32                    Use R_ARM_CALL or R_ARM_JUMP24

http://reviews.llvm.org/D6317

Files:
  lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp
  test/MC/ARM/symbol-variants.s
  test/tools/llvm-readobj/reloc-types.test
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