Add integration test for Keras RNN that run with TF RNN cell.
Add integration test for Keras RNN that run with TF RNN cell.

PiperOrigin-RevId: 208679546

cxxgtxy/tensorflow,paolodedios/tensorflow,paolodedios/tensorflow,brchiu/tensorflow,theflofly/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-Corporation/tensorflow,DavidNorman/tensorflow,Bismarrck/tensorflow,jbedorf/tensorflow,kevin-coder/tensorflow-fork,karllessard/tensorflow,petewarden/tensorflow,tensorflow/tensorflow,cxxgtxy/tensorflow,xodus7/tensorflow,DavidNorman/tensorflow,jbedorf/tensorflow,girving/tensorflow,brchiu/tensorflow,dancingdan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,xodus7/tensorflow,seanli9jan/tensorflow,DavidNorman/tensorflow,yongtang/tensorflow,renyi533/tensorflow,gautam1858/tensorflow,arborh/tensorflow,xzturn/tensorflow,jhseu/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,brchiu/tensorflow,renyi533/tensorflow,cxxgtxy/tensorflow,apark263/tensorflow,xzturn/tensorflow,theflofly/tensorflow,dongjoon-hyun/tensorflow,ppwwyyxx/tensorflow,jhseu/tensorflow,AnishShah/tensorflow,Intel-tensorflow/tensorflow,girving/tensorflow,ppwwyyxx/tensorflow,apark263/tensorflow,AnishShah/tensorflow,apark263/tensorflow,renyi533/tensorflow,annarev/tensorflow,asimshankar/tensorflow,annarev/tensorflow,snnn/tensorflow,brchiu/tensorflow,annarev/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,apark263/tensorflow,aam-at/tensorflow,aam-at/tensorflow,petewarden/tensorflow,petewarden/tensorflow,paolodedios/tensorflow,jbedorf/tensorflow,apark263/tensorflow,freedomtan/tensorflow,sarvex/tensorflow,ppwwyyxx/tensorflow,aldian/tensorflow,gunan/tensorflow,frreiss/tensorflow-fred,seanli9jan/tensorflow,jhseu/tensorflow,kevin-coder/tensorflow-fork,hfp/tensorflow-xsmm,girving/tensorflow,theflofly/tensorflow,sarvex/tensorflow,xzturn/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow,cxxgtxy/tensorflow,hfp/tensorflow-xsmm,dongjoon-hyun/tensorflow,Bismarrck/tensorflow,Intel-tensorflow/tensorflow,jhseu/tensorflow,gautam1858/tensorflow,Intel-Corporation/tensorflow,aam-at/tensorflow,karllessard/tensorflow,ppwwyyxx/tensorflow,freedomtan/tensorflow,DavidNorman/tensorflow,seanli9jan/tensorflow,ageron/tensorflow,xodus7/tensorflow,hfp/tensorflow-xsmm,jendap/tensorflow,Intel-tensorflow/tensorflow,theflofly/tensorflow,dancingdan/tensorflow,adit-chandra/tensorflow,davidzchen/tensorflow,renyi533/tensorflow,Bismarrck/tensorflow,paolodedios/tensorflow,snnn/tensorflow,jbedorf/tensorflow,snnn/tensorflow,xodus7/tensorflow,alsrgv/tensorflow,hfp/tensorflow-xsmm,annarev/tensorflow,hfp/tensorflow-xsmm,annarev/tensorflow,kevin-coder/tensorflow-fork,seanli9jan/tensorflow,jbedorf/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,Bismarrck/tensorflow,hehongliang/tensorflow,annarev/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,aam-at/tensorflow,gautam1858/tensorflow,hehongliang/tensorflow,gunan/tensorflow,DavidNorman/tensorflow,seanli9jan/tensorflow,jendap/tensorflow,apark263/tensorflow,seanli9jan/tensorflow,DavidNorman/tensorflow,yongtang/tensorflow,ghchinoy/tensorflow,kobejean/tensorflow,seanli9jan/tensorflow,chemelnucfin/tensorflow,freedomtan/tensorflow,kevin-coder/tensorflow-fork,frreiss/tensorflow-fred,brchiu/tensorflow,sarvex/tensorflow,xzturn/tensorflow,brchiu/tensorflow,ghchinoy/tensorflow,aam-at/tensorflow,freedomtan/tensorflow,davidzchen/tensorflow,ppwwyyxx/tensorflow,petewarden/tensorflow,paolodedios/tensorflow,cxxgtxy/tensorflow,girving/tensorflow,alsrgv/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,frreiss/tensorflow-fred,yongtang/tensorflow,dancingdan/tensorflow,kevin-coder/tensorflow-fork,xzturn/tensorflow,theflofly/tensorflow,AnishShah/tensorflow,jhseu/tensorflow,alshedivat/tensorflow,dongjoon-hyun/tensorflow,tensorflow/tensorflow,brchiu/tensorflow,tensorflow/tensorflow,hfp/tensorflow-xsmm,ZhangXinNan/tensorflow,seanli9jan/tensorflow,ageron/tensorflow,yongtang/tensorflow,AnishShah/tensorflow,asimshankar/tensorflow,dongjoon-hyun/tensorflow,tensorflow/tensorflow-pywrap_saved_model,frreiss/tensorflow-fred,tensorflow/tensorflow-experimental_link_static_libraries_once,asimshankar/tensorflow,jendap/tensorflow,theflofly/tensorflow,gunan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,snnn/tensorflow,ghchinoy/tensorflow,DavidNorman/tensorflow,renyi533/tensorflow,Intel-tensorflow/tensorflow,chemelnucfin/tensorflow,Bismarrck/tensorflow,alsrgv/tensorflow,cxxgtxy/tensorflow,chemelnucfin/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow-experimental_link_static_libraries_once,karllessard/tensorflow,Intel-Corporation/tensorflow,ghchinoy/tensorflow,petewarden/tensorflow,jhseu/tensorflow,ageron/tensorflow,asimshankar/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,snnn/tensorflow,ghchinoy/tensorflow,jhseu/tensorflow,sarvex/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow,gautam1858/tensorflow,ZhangXinNan/tensorflow,renyi533/tensorflow,ppwwyyxx/tensorflow,ppwwyyxx/tensorflow,gunan/tensorflow,yongtang/tensorflow,alsrgv/tensorflo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