[llvm] [BOLT][AArch64] Allow binary-analysis and heatmap tool to run with pac-ret binaries (PR #136664)

[Paschalis Mpeis via llvm-commits]

paschalis-mpeis wrote:

> Thanks for the approval @paschalis-mpeis! I don't have write permissions the repo, can you merge this in a few days if others have no concerns?

Sure. I see you addressed the nits too, so I proceed now with merging. Thanks!

https://github.com/llvm/llvm-project/pull/136664