[clang] [clang-tools-extra] [flang] [llvm] [mlir] [polly] [test]: fix filecheck annotation typos (PR #91854)

[David Green via llvm-commits]

https://github.com/davemgreen commented:

The Arm/AArch64 tests looks OK for the most part. I might be able to help with some of them if that is easier than trying to sort them all here.

https://github.com/llvm/llvm-project/pull/91854