Prevent CudaEnumComputeCapableGpus V2 crash

[jp7677]

It doesn't allow hardware PhysX in #127, but at least it doesn't crash anymore.

The header says:

typedef struct _NV_COMPUTE_GPU_TOPOLOGY_V2
{
    NvU32 version;                 //!< Structure version
    NvU32 gpuCount;                //!< Size of array
    NV_COMPUTE_GPU *computeGpus;   //!< Array of compute-capable physical GPUs (allocate memory of size of Physical gpuCount of system).

} NV_COMPUTE_GPU_TOPOLOGY_V2;

I would interpret it that this has to be done on the consumer side, but here we are...

[gabriele2000]

With wine 7.20 the game crashes while opening.
With wine 8.9 the game deadlocks (fatally) a second after loading the level.