* Add cudnn host data param case for CUDNN_DATA_INT8x32

* Default case.

* break

* def guards

* removed def guard for ci test.

* put def guards back

* Remove default to make clang happy.

* Remove clang default switch warning on cudnnDataType_t enum.

* Formatting.

* Added Wswitch-enum supression.

* Back to switch, remove pragma clang suppression.

* disable one more switch compiler check

* Remove default break after throw.