[llvm] [SHT_LLVM_BB_ADDR_MAP] Deprecate SHT_LLVM_BB_ADDR_MAP versions 0 and 1. (PR #74107)

[Micah Weston via llvm-commits]

https://github.com/red1bluelost approved this pull request.

LGTM. Thanks for adding the errors. I'm okay with deprecating fully but I wouldn't be opposed to keeping around the decoding for a bit longer if we emit a deprecation warning that it isn't actively unit tested and will be dropped in the future.

https://github.com/llvm/llvm-project/pull/74107