Add CUDA Driver API for GPU discovery

We're seeing some corner cases with cudart which might be resolved by
switching to the driver API which comes bundled with the driver package

gpu/gpu_info.h

@@ -58,6 +58,7 @@ void cpu_check_ram(mem_info_t *resp);
 #endif
 
 #include "gpu_info_cudart.h"
+#include "gpu_info_nvcuda.h"
 
 #endif  // __GPU_INFO_H__
 #endif  // __APPLE__