Merge commit 'ecdc451c' into stage-aosp-master

Merge changes I3c9b1292,I05c28d6a,I788c4a95,If8cd798f,I1c8d1cd7, ...

* changes:
  Implement dynamic TLS accesses and allocation
  Implement TLS_DTPMOD and TLS_DTPREL relocations
  Ignore DT_TLSDESC_GOT / DT_TLSDESC_PLT
  Disable the dlfcn.dlopen_library_with_ELF_TLS test
  Add BionicAllocator::memalign
  Move the linker allocator into libc
  Replace some of linker_allocator's header includes

Change-Id: Iaa91e181af835ab12e568b98dbebc7516fcf24a9