[llvm] [GlobalIsel] update inline-memset.mir test (PR #107874)

[Dhruv Chawla via llvm-commits]

dc03-work wrote:

I think this is an NFC, please mark it in the title. Though, I don't think there is a need to have a separate PR for this?

https://github.com/llvm/llvm-project/pull/107874