[llvm] [flang-rt] replace the triple dir to 'aix' for flang-rt to be consistent with clang on AIX. (PR #130875)

[Michael Kruse via llvm-commits]

https://github.com/Meinersbur approved this pull request.

You are correct, fixed in 13261e856aa54e6c86b500c6d0bb329f08ad5eb7.

As the comment mentioned, flang-rt only uses the LLVM_ENABLE_PER_TARGET_RUNTIME_DIR=ON scheme and ignores the setting. See https://github.com/llvm/llvm-project/pull/110217#issuecomment-2557126247 for the decision.

I am LGTM-ing this low-impact PR in order to get it working on AIX even though I think there is something more profound going on. It can be cleaned up some other time.

https://github.com/llvm/llvm-project/pull/130875