Patch CUDA training logic to enable wasmedge-llmc gpu backend #33

Job	Run time
build-and-test-cpu (ubuntu-latest)	4m 30s
build-cuda-fp32	1m 19s
build-cuda-fp16	1m 14s
build-cuda-bf16	1m 18s
build-and-test-cpu (macos-latest)	3m 47s
build-and-test-cpu (windows-latest)	7m 13s
build-cuda-kernels	1m 32s
build-cuda-windows	2m 57s
build-ubuntu20-04	2m 39s
	26m 29s

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