Enable packed variable by default when mlir is enabled.
Enable packed variable by default when mlir is enabled.

PiperOrigin-RevId: 320446068
Change-Id: Iefda11fb498932c2929a554a3e8623802ae4be9e

tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-pywrap_saved_model,petewarden/tensorflow,gautam1858/tensorflow,karllessard/tensorflow,karllessard/tensorflow,freedomtan/tensorflow,petewarden/tensorflow,Intel-Corporation/tensorflow,davidzchen/tensorflow,karllessard/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,aldian/tensorflow,sarvex/tensorflow,petewarden/tensorflow,tensorflow/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-pywrap_saved_model,petewarden/tensorflow,karllessard/tensorflow,freedomtan/tensorflow,freedomtan/tensorflow,frreiss/tensorflow-fred,annarev/tensorflow,frreiss/tensorflow-fred,cxxgtxy/tensorflow,aam-at/tensorflow,gautam1858/tensorflow,paolodedios/tensorflow,aam-at/tensorflow,gautam1858/tensorflow,cxxgtxy/tensorflow,Intel-tensorflow/tensorflow,cxxgtxy/tensorflow,freedomtan/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-experimental_link_static_libraries_once,yongtang/tensorflow,freedomtan/tensorflow,freedomtan/tensorflow,petewarden/tensorflow,freedomtan/tensorflow,cxxgtxy/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,aam-at/tensorflow,karllessard/tensorflow,Intel-tensorflow/tensorflow,yongtang/tensorflow,Intel-tensorflow/tensorflow,davidzchen/tensorflow,karllessard/tensorflow,Intel-Corporation/tensorflow,petewarden/tensorflow,paolodedios/tensorflow,paolodedios/tensorflow,davidzchen/tensorflow,tensorflow/tensorflow-pywrap_saved_model,sarvex/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,paolodedios/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,aam-at/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-experimental_link_static_libraries_once,aam-at/tensorflow,annarev/tensorflow,Intel-tensorflow/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,annarev/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,karllessard/tensorflow,freedomtan/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-pywrap_saved_model,freedomtan/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-pywrap_saved_model,sarvex/tensorflow,yongtang/tensorflow,sarvex/tensorflow,petewarden/tensorflow,annarev/tensorflow,tensorflow/tensorflow,aam-at/tensorflow,aldian/tensorflow,annarev/tensorflow,gautam1858/tensorflow,yongtang/tensorflow,freedomtan/tensorflow,yongtang/tensorflow,tensorflow/tensorflow,aldian/tensorflow,tensorflow/tensorflow,davidzchen/tensorflow,petewarden/tensorflow,sarvex/tensorflow,sarvex/tensorflow,Intel-Corporation/tensorflow,Intel-Corporation/tensorflow,yongtang/tensorflow,frreiss/tensorflow-fred,tensorflow/tensorflow-pywrap_tf_optimizer,Intel-tensorflow/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-Corporation/tensorflow,gautam1858/tensorflow,petewarden/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-pywrap_saved_model,gautam1858/tensorflow,tensorflow/tensorflow-pywrap_saved_model,frreiss/tensorflow-fred,annarev/tensorflow,davidzchen/tensorflow,gautam1858/tensorflow,Intel-tensorflow/tensorflow,davidzchen/tensorflow,annarev/tensorflow,frreiss/tensorflow-fred,davidzchen/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,frreiss/tensorflow-fred,gautam1858/tensorflow,sarvex/tensorflow,aam-at/tensorflow,aldian/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-pywrap_saved_model,davidzchen/tensorflow,petewarden/tensorflow,karllessard/tensorflow,cxxgtxy/tensorflow,frreiss/tensorflow-fred,aldian/tensorflow,sarvex/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,paolodedios/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,davidzchen/tensorflow,tensorflow/tensorflow,Intel-tensorflow/tensorflow,aldian/tensorflow,Intel-tensorflow/tensorflow,annarev/tensorflow,aam-at/tensorflow,davidzchen/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-pywrap_saved_model,davidzchen/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,frreiss/tensorflow-fred,cxxgtxy/tensorflow,petewarden/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,cxxgtxy/tensorflow,freedomtan/tensorflow,karllessard/tensorflow,tensorflow/tensorflow,gautam1858/tensorflow,aldian/tensorflow,frreiss/tensorflow-fred,Intel-Corporation/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,gautam1858/tensorflow,freedomtan/tensorflow,frreiss/tensorflow-fred,paolodedios/tensorflow,aldian/tensorflow,yongtang/tensorflow,karllessard/tensorflow,tensorflow/tensorflow,karllessard/tensorflow,petewarden/tensorflow,frreiss/tensorflow-fred,cxxgtxy/tensorflow,davidzchen/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,paolodedios/tensorflow,tensorflow/tensorflow,tensorflow/tensorflow,annarev/tensorflow,annarev/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,gautam1858/tensorflow,tensorflow/tensorflow-pywrap_saved_model,aam-at/tensorflow,yongtang/tensorflow,frreiss/tensorflow-fred,tensorflow/tensorflow,aam-at/tensorflow,paolodedios/tensorflow,annarev/tensorflow,tensorflow/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-experimental_link_static_libraries_once