[PATCH] [AArch64] Add missing PCRel relocations for AArch64 in RuntimeDyldELF

[Amara Emerson]

  I agree about the small memory model tests. The SectionMemoryManager calls allocateMappedMemory() in Support/Memory.h which doesn't guarantee at all that the returned page will be near the requested hint address. In fact, if allocation fails then it attempts to mmap without a hint at all.

http://llvm-reviews.chandlerc.com/D2696