[llvm-branch-commits] [llvm] [AArch64][llvm] Fix encoding for `stshh` instruction (#189588) (PR #189679)

[Cullen Rhodes via llvm-branch-commits]

c-rhodes wrote:

22.1.3 is next Tuesday and it's a 4 day weekend here in the UK so if we want this in the next release today is your last day to approve unless you plan on working over the weekend

https://github.com/llvm/llvm-project/pull/189679