[clang] [Clang][ARM] Fix immediate range for NEON widening left-shifts (PR #212459)

[David Green via cfe-commits]

https://github.com/davemgreen commented:

Thanks for the updates - What code does `vshll_n_u32(X, 32)` produce now? Is there a shift with out of range values? Could we test the codegen?

https://github.com/llvm/llvm-project/pull/212459