Patch CUDA training logic to enable wasmedge-llmc gpu backend #29

Job	Run time
build-and-test-cpu (ubuntu-latest)	4m 27s
build-cuda-bf16	1m 11s
build-and-test-cpu (macos-latest)	3m 16s
build-cuda-fp16	1m 14s
build-and-test-cpu (windows-latest)	6m 13s
build-cuda-fp32	1m 19s
build-cuda-windows	2m 54s
build-cuda-kernels	1m 31s
build-ubuntu20-04	2m 44s
	24m 49s

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