[llvm] [AArch64][BOLT] Fold local-exec TLS relocations into loads and stores (PR #215531)

[Peter Smith via llvm-commits]

smithp35 wrote:

> Thanks @smithp35 and @yavtuk for the reviews! @smithp35, would you mind merging this when you have a chance? I don't have commit access. Thanks!

If it's OK I'll do that Monday morning. It's last thing on Friday at the moment and I'm just about to be out-of-office, I'd like to be there just in case there are problems. 

No worries if anyone else wants to do the merge.

https://github.com/llvm/llvm-project/pull/215531