PR #66023: [oneDNN] Add accidentally removed ops back to MklList for auto_mixed_precision
PR #66023: [oneDNN] Add accidentally removed ops back to MklList for auto_mixed_precision

Imported from GitHub PR https://github.com/tensorflow/tensorflow/pull/66023

 [PR-62817](https://github.com/tensorflow/tensorflow/pull/62817) accidentally removed these ops, so adding them back.
Copybara import of the project:

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b9077f91f4c1462b37b4c03bfb5aa8e1d8908933 by Gauri1 Deshpande <gauri1.deshpande@intel.com>:

add ops back to MklList for auto_mixed_precision; accidentally removed in another PR

Merging this change closes #66023

FUTURE_COPYBARA_INTEGRATE_REVIEW=https://github.com/tensorflow/tensorflow/pull/66023 from Intel-tensorflow:gaurides/add_back_bf16_sum_mean b9077f91f4c1462b37b4c03bfb5aa8e1d8908933
