[llvm] DAG: Replace bitwidth with type in suffix in atomic tablegen ops (PR #94845)

[Matt Arsenault via llvm-commits]

arsenm wrote:

> The two occurrences of `swap` in the sed command don't match with the definitions in the code ([here]

This wasn't purely that sed command, just a sample 

https://github.com/llvm/llvm-project/pull/94845