Include missing header (functional).
Include missing header (functional).

hfp/tensorflow-xsmm,hfp/tensorflow-xsmm,hfp/tensorflow-xsmm,hfp/tensorflow-xsmm,hfp/tensorflow-xsmm,hfp/tensorflow-xsmm,hfp/tensorflow-xsmm,hfp/tensorflow-xsmm,hfp/tensorflow-xsmm,hfp/tensorflow-xsmm,hfp/tensorflow-xsmm