[llvm] [BOLT] Register Linux kernel dynamic branch offsets (PR #90677)

[Maksim Panchenko via llvm-commits]

maksfb wrote:

> SG, we discussed this at length some time ago (and I also remember the explanation at EuroLLVM 2023)

It's a bit more nuanced. Updated the summary with details.

https://github.com/llvm/llvm-project/pull/90677