[llvm] [AArch64] Add intra-block CSINC optimization to AArch64ConditionOptimizer (PR #173734)

[Nashe Mncube via llvm-commits]

nasherm wrote:

> The workflows might need approval it seems

I can approve the workflows

> Actually, are maintainers automatically notified of workflow requests, or do I need to ping/send a message?

This is new to me. It seems like I have to approve the workflows since this is one of your first commits and you don't have commit access 

https://github.com/llvm/llvm-project/pull/173734