[llvm] [MemProf][Docs] Add more information on static data partitioning (PR #220446)

[Aiden Grossman via llvm-commits]

boomanaiden154 wrote:

> I think the current behaviour is not intended to be the final state. Can you take a look at https://github.com/llvm/llvm-project/pull/148985 ? I think we may prefer landing that instead of codifying the current user experience.

Good point. Landed that change and updated the documentation. Definitely a lot cleaner than a linker script.

https://github.com/llvm/llvm-project/pull/220446