[clang] [NVPTX] Fixed some wmma store builtins that had non-const src param. (PR #69354)

[via cfe-commits]

ldrumm wrote:

```
To github.com:llvm/llvm-project.git                                                                                                                                                                                                                                                                                             
   180eae1f1e5a..b781c7ab574f  main -> main 

https://github.com/llvm/llvm-project/pull/69354