[llvm] [NFC][BOLT] Refactor PatchEntries (PR #127812)

[Paschalis Mpeis via llvm-commits]

paschalis-mpeis wrote:

Hey Amir,

Yes. I will stack #116964 on top of this. I'll be using the flag in core (BinaryContext) and in core unit-tests, and I figured it's simpler if I move this to Utils.

https://github.com/llvm/llvm-project/pull/127812