[llvm] [AArch64] Enable masked load/store for Streaming-SVE with -march=armv8-a+sme (PR #163133)

[Sander de Smalen via llvm-commits]

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

Are you trying to enable auto-vectorization for streaming[-compatible] functions?

https://github.com/llvm/llvm-project/pull/163133