add CUDNN_STATUS_VERSION_MISMATCH

Author: MatthijsBurgh

include/caffe/util/cudnn.hpp

@@ -50,6 +50,10 @@ inline const char* cudnnGetErrorString(cudnnStatus_t status) {
       return "CUDNN_STATUS_RUNTIME_IN_PROGRESS";
     case CUDNN_STATUS_RUNTIME_FP_OVERFLOW:
       return "CUDNN_STATUS_RUNTIME_FP_OVERFLOW";
+#endif
+#if CUDNN_VERSION_MIN(8, 0, 1)
+    case CUDNN_STATUS_VERSION_MISMATCH:
+      return "CUDNN_STATUS_VERSION_MISMATCH";
 #endif
   }
   return "Unknown cudnn status";