[clang] [llvm] [NVPTX] Change the alloca address space in NVPTXLowerAlloca (PR #154814)

[Theodoros Theodoridis via llvm-commits]

thetheodor wrote:

```
 ******************** TEST 'LLVM :: CodeGen/NVPTX/local-stack-frame.ll' FAILED ********************
```
is failing but I can't reproduce this locally, I'm trying to figure out how my config is different than the test bot's.

https://github.com/llvm/llvm-project/pull/154814