lib.licenses: nvidia*: add shortName-s

lib/licenses.nix

···
   };
 
   nvidiaCuda = {
+    shortName = "CUDA EULA";
     fullName = "CUDA Toolkit End User License Agreement (EULA)";
     url = "https://docs.nvidia.com/cuda/eula/index.html#cuda-toolkit-supplement-license-agreement";
     free = false;

pkgs/development/libraries/science/math/cudnn/generic.nix

···
       homepage = "https://developer.nvidia.com/cudnn";
       sourceProvenance = with sourceTypes; [binaryNativeCode];
       license = {
+        shortName = "cuDNN EULA";
         fullName = "NVIDIA cuDNN Software License Agreement (EULA)";
         url = "https://docs.nvidia.com/deeplearning/sdk/cudnn-sla/index.html#supplement";
         free = false;