Patch CUDA training logic to enable wasmedge-llmc gpu backend #30

Job	Run time
build-cuda-bf16	1m 17s
build-and-test-cpu (ubuntu-latest)	7m 44s
build-cuda-fp16	1m 15s
build-and-test-cpu (macos-latest)	3m 18s
build-cuda-fp32	1m 20s
build-and-test-cpu (windows-latest)	7m 53s
build-cuda-kernels	1m 30s
build-cuda-windows	2m 4s
build-ubuntu20-04	2m 41s
	29m 2s

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