[llvm] Add llvm-extract-bundle-entry to extend llvm-objcopy (PR #169386)

[James Henderson via llvm-commits]

https://github.com/jh7370 commented:

Sorry for the slow reviewing: I've got too much on my plate and not enough time to do all the reviews that are coming my way.

https://github.com/llvm/llvm-project/pull/169386