[clang] [lld] [mlir] [llvm] [AMDGPU] Change default AMDHSA Code Object version to 5 (PR #73000)

[Joseph Huber via cfe-commits]

https://github.com/jhuber6 approved this pull request.

Assuming all the tests pass, this LG and has been a long time coming. Thanks for working on this.

https://github.com/llvm/llvm-project/pull/73000