UCT/CUDA/BASE: Changed log level of cuInit errors.

[rakhmets]

What?

Changed log level of cuInit errors.
Error level is too high for this logging. This code can be called on a system with no CUDA-capable device. Debug message is enough in this case.
Fixes internal issue 4338480

[brminich]

shall we return back an error print removed in #10492?

[rakhmets]

shall we return back an error print removed in #10492?

No, this fixed duplicate output.

[brminich]

shall we return back an error print removed in #10492?

No, this fixed duplicate output.

you mean it is already printed by uct_cuda_base_query_md_resources?

[rakhmets]

shall we return back an error print removed in #10492?

No, this fixed duplicate output.

you mean it is already printed by uct_cuda_base_query_md_resources?

The removed line duplicates the output of the UCT_CUDADRV_FUNC_LOG_ERR macro.

    status = UCT_CUDADRV_FUNC_LOG_ERR(cuDeviceGetCount(&num_devices));
    if (UCS_OK != status) {
-        ucs_error("cuDeviceGetCount() failed: %s", ucs_status_string(status));
        return NULL;
    }