[clang] [CUDA] Rename SM_32 to SM_32_ to work around AIX headers (PR #88779)

[Aaron Ballman via cfe-commits]

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@@ -3466,7 +3466,7 @@ void CGOpenMPRuntimeGPU::processRequiresDirective(
       case CudaArch::SM_20:
       case CudaArch::SM_21:
       case CudaArch::SM_30:
-      case CudaArch::SM_32:
+      case CudaArch::_SM_32:
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AaronBallman wrote:

`SM_32_` ?

https://github.com/llvm/llvm-project/pull/88779