[llvm] [AArch64][SVE] Fix for wide adds trying to be generated (PR #118838)

[Paul Walker via llvm-commits]

https://github.com/paulwalker-arm commented:

It's worth adding an `sve` RUN line to llvm/test/CodeGen/AArch64/sve-partial-reduce-wide-add.ll to protect the code.

https://github.com/llvm/llvm-project/pull/118838