[llvm] [Offload] Refactor offload test requirements (PR #95196)

[Joseph Huber via llvm-commits]

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@@ -2,7 +2,7 @@
 // RUN: %libomptarget-run-generic %fcheck-generic
 
 // REQURIES: gpu
-// UNSUPPORTED: nvidia-gpu
+// UNSUPPORTED: nvidiagpu
 // UNSUPPORTED: amdgcn-amd-amdhsa
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jhuber6 wrote:

Seems weird that we're doing `nvidia-gpu` instead of `nvptx64-nvidia-cuda` or `just `nvptx` when there's `amdgcn` right below it. I don't think there's a particular need to distinguish between the NVPTX triple and the NVPTX triple on a GPU.

https://github.com/llvm/llvm-project/pull/95196