DGX Spark: UMA support (#17368)
* DGX Spark: UMA support
* Updates from PR feedback
* More PR feedback cleanup
* Update ggml/src/ggml-cuda/ggml-cuda.cu
Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
* Remove trailing whitespace
* Update ggml/src/ggml-cuda/ggml-cuda.cu
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Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
