Revert "AArch64: Set shift bit of TLSLE HI12 add instruction"

This reverts commit r282057 because it broke the buildbots - see e.g.
http://lab.llvm.org:8011/builders/clang-cmake-aarch64-42vma/builds/12063

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282058 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed