[clang] [llvm] [PowerPC] Support local-dynamic TLS relocation on AIX (PR #66316)

[Amy Kwan via cfe-commits]

https://github.com/amy-kwan commented:

I believe some of the test cases also require updates as a result of https://github.com/llvm/llvm-project/pull/80162.

https://github.com/llvm/llvm-project/pull/66316