Change the default TensorRT version to 6.
Change the default TensorRT version to 6.

PiperOrigin-RevId: 276359913
Change-Id: I1982e83d5d214375cdf153a093a003c68bdcedea

gautam1858/tensorflow,Intel-Corporation/tensorflow,annarev/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-pywrap_tf_optimizer,karllessard/tensorflow,gunan/tensorflow,karllessard/tensorflow,paolodedios/tensorflow,gunan/tensorflow,petewarden/tensorflow,Intel-tensorflow/tensorflow,davidzchen/tensorflow,annarev/tensorflow,frreiss/tensorflow-fred,Intel-Corporation/tensorflow,jhseu/tensorflow,gautam1858/tensorflow,gautam1858/tensorflow,renyi533/tensorflow,Intel-Corporation/tensorflow,frreiss/tensorflow-fred,karllessard/tensorflow,freedomtan/tensorflow,cxxgtxy/tensorflow,cxxgtxy/tensorflow,frreiss/tensorflow-fred,aam-at/tensorflow,ppwwyyxx/tensorflow,xzturn/tensorflow,Intel-tensorflow/tensorflow,renyi533/tensorflow,freedomtan/tensorflow,cxxgtxy/tensorflow,Intel-Corporation/tensorflow,aldian/tensorflow,gautam1858/tensorflow,renyi533/tensorflow,tensorflow/tensorflow,annarev/tensorflow,Intel-Corporation/tensorflow,paolodedios/tensorflow,gunan/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,jhseu/tensorflow,annarev/tensorflow,Intel-tensorflow/tensorflow,adit-chandra/tensorflow,cxxgtxy/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,annarev/tensorflow,tensorflow/tensorflow,Intel-tensorflow/tensorflow,aldian/tensorflow,yongtang/tensorflow,cxxgtxy/tensorflow,ppwwyyxx/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,arborh/tensorflow,karllessard/tensorflow,freedomtan/tensorflow,davidzchen/tensorflow,tensorflow/tensorflow,Intel-tensorflow/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow,davidzchen/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,aam-at/tensorflow,karllessard/tensorflow,frreiss/tensorflow-fred,davidzchen/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-pywrap_saved_model,arborh/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,yongtang/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,frreiss/tensorflow-fred,jhseu/tensorflow,davidzchen/tensorflow,petewarden/tensorflow,ppwwyyxx/tensorflow,Intel-tensorflow/tensorflow,petewarden/tensorflow,petewarden/tensorflow,paolodedios/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,karllessard/tensorflow,jhseu/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-tensorflow/tensorflow,xzturn/tensorflow,gautam1858/tensorflow,freedomtan/tensorflow,yongtang/tensorflow,freedomtan/tensorflow,davidzchen/tensorflow,davidzchen/tensorflow,renyi533/tensorflow,frreiss/tensorflow-fred,frreiss/tensorflow-fred,gunan/tensorflow,adit-chandra/tensorflow,adit-chandra/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,frreiss/tensorflow-fred,aam-at/tensorflow,xzturn/tensorflow,adit-chandra/tensorflow,petewarden/tensorflow,gautam1858/tensorflow,freedomtan/tensorflow,ppwwyyxx/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,xzturn/tensorflow,arborh/tensorflow,gautam1858/tensorflow,adit-chandra/tensorflow,davidzchen/tensorflow,paolodedios/tensorflow,sarvex/tensorflow,arborh/tensorflow,xzturn/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,ppwwyyxx/tensorflow,xzturn/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-tensorflow/tensorflow,aldian/tensorflow,aam-at/tensorflow,annarev/tensorflow,gunan/tensorflow,Intel-Corporation/tensorflow,adit-chandra/tensorflow,ppwwyyxx/tensorflow,petewarden/tensorflow,aam-at/tensorflow,paolodedios/tensorflow,Intel-tensorflow/tensorflow,aldian/tensorflow,renyi533/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-pywrap_tf_optimizer,aldian/tensorflow,arborh/tensorflow,arborh/tensorflow,sarvex/tensorflow,freedomtan/tensorflow,paolodedios/tensorflow,petewarden/tensorflow,gunan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,yongtang/tensorflow,frreiss/tensorflow-fred,gunan/tensorflow,freedomtan/tensorflow,yongtang/tensorflow,aam-at/tensorflow,jhseu/tensorflow,paolodedios/tensorflow,gunan/tensorflow,tensorflow/tensorflow,jhseu/tensorflow,sarvex/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-pywrap_saved_model,sarvex/tensorflow,Intel-tensorflow/tensorflow,annarev/tensorflow,renyi533/tensorflow,tensorflow/tensorflow,frreiss/tensorflow-fred,adit-chandra/tensorflow,sarvex/tensorflow,sarvex/tensorflow,arborh/tensorflow,tensorflow/tensorflow-pywrap_saved_model,aam-at/tensorflow,arborh/tensorflow,paolodedios/tensorflow,sarvex/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-Corporation/tensorflow,tensorflow/tensorflow-pywrap_saved_model,petewarden/tensorflow,xzturn/tensorflow,petewarden/tensorflow,renyi533/tensorflow,gunan/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,annarev/tensorflow,davidzchen/tensorflow,ppwwyyxx/tensorflow,arborh/tensorflow,renyi533/tensorflow,aam-at/tensorflow,frreiss/tensorflow-fred,frreiss/tensorflow-fred,xzturn/tensorflow,aldian/tensorflow,adit-chandra/tensorflow,jhseu/tensorflow,davidzchen/tensorflow,gautam1858/tensorflow,freedomtan/tensorflow,jhseu/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-pywrap_saved_model,renyi533/tensorflow,gautam1858/tensorflow,adit-chandra/tensorflow,cxxgtxy/tensorflow,annarev/tensorflow,gautam1858/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,ppwwyyxx/tensorflow,annarev/tensorflow,renyi533/tensorflow,xzturn/tensorflow,karllessard/tensorflow,aldian/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,karllessard/tensorflow,gunan/tensorflow,xzturn/tensorflow,jhseu/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,adit-chandra/tensorflow,tensorflow/tensorflow,davidzchen/tensorflow,Intel-Corporation/tensorflow,petewarden/tensorflow,ppwwyyxx/tensorflow,tensorflow/tensorflow,Intel-tensorflow/tensorflow,cxxgtxy/tensorflow,paolodedios/tensorflow,davidzchen/tensorflow,yongtang/tensorflow,tensorflow/tensorflow,arborh/tensorflow,xzturn/tensorflow,ppwwyyxx/tensorflow,petewarden/tensorflow,arborh/tensorflow,tensorflow/tensorflow,gunan/tensorflow,jhseu/tensorflow,aam-at/tensorflow,sarvex/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-pywrap_saved_model,adit-chandra/tensorflow,tensorflow/tensorflow-pywrap_saved_model,freedomtan/tensorflow,aam-at/tensorflow,xzturn/tensorflow,gunan/tensorflow,gautam1858/tensorflow,aldian/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,renyi533/tensorflow,arborh/tensorflow,yongtang/tensorflow,annarev/tensorflow,yongtang/tensorflow,petewarden/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow,adit-chandra/tensorflow,ppwwyyxx/tensorflow,yongtang/tensorflow,renyi533/tensorflow,jhseu/tensorflow,ppwwyyxx/tensorflow,jhseu/tensorflow,karllessard/tensorflow,yongtang/tensorflow