[llvm] [TargetParser] Parse Amazon Linux triple and handle RuntimeLibcalls (PR #136114)

[Benjamin Maxwell via llvm-commits]

MacDue wrote:

> @[pawosm-arm](https://github.com/pawosm-arm) pawosm-arm added this to the [LLVM 20.X Release](https://github.com/llvm/llvm-project/milestone/26) milestone [Apr 17, 2025](https://github.com/llvm/llvm-project/pull/136114#event-17304893064)

I don't think this can be added to the LLVM 20.X release as it's an ABI break (a similar change caused issues in LLVM 19: https://discourse.llvm.org/t/potential-abi-break-in-19-1-3/82865)

https://github.com/llvm/llvm-project/pull/136114