Adds test case of uint8 support for Pad with GPU
Adds test case of uint8 support for Pad with GPU

Signed-off-by: Yong Tang <765086fe2e0c1f980161f127fec596800f327f62@outlook.com>

xzturn/tensorflow,adit-chandra/tensorflow,kevin-coder/tensorflow-fork,tensorflow/tensorflow-pywrap_tf_optimizer,frreiss/tensorflow-fred,ghchinoy/tensorflow,freedomtan/tensorflow,apark263/tensorflow,arborh/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,arborh/tensorflow,ageron/tensorflow,petewarden/tensorflow,cxxgtxy/tensorflow,aam-at/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,arborh/tensorflow,DavidNorman/tensorflow,aldian/tensorflow,Intel-Corporation/tensorflow,jhseu/tensorflow,ghchinoy/tensorflow,jendap/tensorflow,DavidNorman/tensorflow,jbedorf/tensorflow,ageron/tensorflow,frreiss/tensorflow-fred,adit-chandra/tensorflow,Intel-tensorflow/tensorflow,apark263/tensorflow,renyi533/tensorflow,karllessard/tensorflow,arborh/tensorflow,xzturn/tensorflow,petewarden/tensorflow,renyi533/tensorflow,DavidNorman/tensorflow,adit-chandra/tensorflow,ageron/tensorflow,ageron/tensorflow,freedomtan/tensorflow,theflofly/tensorflow,paolodedios/tensorflow,jendap/tensorflow,Intel-Corporation/tensorflow,xzturn/tensorflow,cxxgtxy/tensorflow,yongtang/tensorflow,freedomtan/tensorflow,cxxgtxy/tensorflow,yongtang/tensorflow,frreiss/tensorflow-fred,xzturn/tensorflow,cxxgtxy/tensorflow,theflofly/tensorflow,ghchinoy/tensorflow,Intel-tensorflow/tensorflow,gunan/tensorflow,ghchinoy/tensorflow,freedomtan/tensorflow,arborh/tensorflow,ageron/tensorflow,Intel-tensorflow/tensorflow,annarev/tensorflow,chemelnucfin/tensorflow,karllessard/tensorflow,yongtang/tensorflow,ageron/tensorflow,alsrgv/tensorflow,chemelnucfin/tensorflow,jendap/tensorflow,ghchinoy/tensorflow,DavidNorman/tensorflow,kevin-coder/tensorflow-fork,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,frreiss/tensorflow-fred,DavidNorman/tensorflow,aam-at/tensorflow,adit-chandra/tensorflow,Intel-tensorflow/tensorflow,ppwwyyxx/tensorflow,ghchinoy/tensorflow,gunan/tensorflow,ppwwyyxx/tensorflow,gunan/tensorflow,kevin-coder/tensorflow-fork,jendap/tensorflow,jhseu/tensorflow,theflofly/tensorflow,frreiss/tensorflow-fred,paolodedios/tensorflow,chemelnucfin/tensorflow,adit-chandra/tensorflow,jendap/tensorflow,xzturn/tensorflow,Intel-tensorflow/tensorflow,renyi533/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,jhseu/tensorflow,renyi533/tensorflow,sarvex/tensorflow,freedomtan/tensorflow,yongtang/tensorflow,aam-at/tensorflow,jbedorf/tensorflow,jendap/tensorflow,tensorflow/tensorflow-pywrap_saved_model,jhseu/tensorflow,tensorflow/tensorflow-pywrap_saved_model,theflofly/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,aam-at/tensorflow,gunan/tensorflow,davidzchen/tensorflow,karllessard/tensorflow,annarev/tensorflow,ageron/tensorflow,gautam1858/tensorflow,apark263/tensorflow,tensorflow/tensorflow-pywrap_saved_model,jhseu/tensorflow,renyi533/tensorflow,davidzchen/tensorflow,jbedorf/tensorflow,adit-chandra/tensorflow,gautam1858/tensorflow,jbedorf/tensorflow,kevin-coder/tensorflow-fork,renyi533/tensorflow,tensorflow/tensorflow,aldian/tensorflow,DavidNorman/tensorflow,adit-chandra/tensorflow,ppwwyyxx/tensorflow,chemelnucfin/tensorflow,jhseu/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,davidzchen/tensorflow,jhseu/tensorflow,davidzchen/tensorflow,alsrgv/tensorflow,xzturn/tensorflow,DavidNorman/tensorflow,yongtang/tensorflow,aldian/tensorflow,petewarden/tensorflow,arborh/tensorflow,tensorflow/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow,Intel-Corporation/tensorflow,jhseu/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,petewarden/tensorflow,annarev/tensorflow,renyi533/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,gautam1858/tensorflow,jbedorf/tensorflow,gunan/tensorflow,ppwwyyxx/tensorflow,Intel-tensorflow/tensorflow,arborh/tensorflow,jendap/tensorflow,annarev/tensorflow,cxxgtxy/tensorflow,aam-at/tensorflow,ageron/tensorflow,paolodedios/tensorflow,adit-chandra/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,aam-at/tensorflow,ghchinoy/tensorflow,jhseu/tensorflow,davidzchen/tensorflow,Intel-tensorflow/tensorflow,ghchinoy/tensorflow,jendap/tensorflow,apark263/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,aam-at/tensorflow,karllessard/tensorflow,paolodedios/tensorflow,frreiss/tensorflow-fred,petewarden/tensorflow,sarvex/tensorflow,theflofly/tensorflow,DavidNorman/tensorflow,kevin-coder/tensorflow-fork,Intel-tensorflow/tensorflow,apark263/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow,paolodedios/tensorflow,chemelnucfin/tensorflow,adit-chandra/tensorflow,karllessard/tensorflow,apark263/tensorflow,aldian/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,paolodedios/tensorflow,kevin-coder/tensorflow-fork,freedomtan/tensorflow,theflofly/tensorflow,alsrgv/tensorflow,apark263/tensorflow,alsrgv/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-pywrap_saved_model,jbedorf/tensorflow,annarev/tensorflow,yongtang/tensorflow,petewarden/tensorflow,theflofly/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-pywrap_saved_model,gunan/tensorflow,kevin-coder/tensorflow-fork,kevin-coder/tensorflow-fork,annarev/tensorflow,ppwwyyxx/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-pywrap_saved_model,gautam1858/tensorflow,Intel-tensorflow/tensorflow,xzturn/tensorflow,chemelnucfin/tensorflow,freedomtan/tensorflow,ppwwyyxx/tensorflow,paolodedios/tensorflow,karllessard/tensorflow,gautam1858/tensorflow,xzturn/tensorflow,davidzchen/tensorflow,apark263/tensorflow,yongtang/tensorflow,annarev/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,ppwwyyxx/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,sarvex/tensorflow,sarvex/tensorflow,aam-at/tensorflow,ageron/tensorflow,freedomtan/tensorflow,renyi533/tensorflow,tensorflow/tensorflow-pywrap_saved_model,ppwwyyxx/tensorflow,alsrgv/tensorflow,sarvex/tensorflow,karllessard/tensorflow,sarvex/tensorflow,ppwwyyxx/tensorflow,gunan/tensorflow,renyi533/tensorflow,petewarden/tensorflow,annarev/tensorflow,ghchinoy/tensorflow,frreiss/tensorflow-fred,ghchinoy/tensorflow,kevin-coder/tensorflow-fork,gunan/tensorflow,davidzchen/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,gunan/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,gautam1858/tensorflow,jendap/tensorflow,yongtang/tensorflow,tensorflow/tensorflow,davidzchen/tensorflow,chemelnucfin/tensorflow,gunan/tensorflow,alsrgv/tensorflow,ppwwyyxx/tensorflow,alsrgv/tensorflow,jbedorf/tensorflow,tensorflow/tensorflow,xzturn/tensorflow,jbedorf/tensorflow,aldian/tensorflow,annarev/tensorflow,Intel-Corporation/tensorflow,gautam1858/tensorflow,DavidNorman/tensorflow,tensorflow/tensorflow,annarev/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,frreiss/tensorflow-fred,davidzchen/tensorflow,DavidNorman/tensorflow,karllessard/tensorflow,gunan/tensorflow,ghchinoy/tensorflow,kevin-coder/tensorflow-fork,ghchinoy/tensorflow,jbedorf/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow,jhseu/tensorflow,alsrgv/tensorflow,annarev/tensorflow,arborh/tensorflow,aldian/tensorflow,karllessard/tensorflow,renyi533/tensorflow,sarvex/tensorflow,Intel-Corporation/tensorflow,renyi533/tensorflow,tensorflow/tensorflow,frreiss/tensorflow-fred,theflofly/tensorflow,jbedorf/tensorflow,adit-chandra/tensorflow,arborh/tensorflow,jhseu/tensorflow,chemelnucfin/tensorflow,ageron/tensorflow,ppwwyyxx/tensorflow,theflofly/tensorflow,arborh/tensorflow,ageron/tensorflow,freedomtan/tensorflow,davidzchen/tensorflow,petewarden/tensorflow,jendap/tensorflow,tensorflow/tensorflow-pywrap_saved_model,cxxgtxy/tensorflow,renyi533/tensorflow,cxxgtxy/tensorflow,arborh/tensorflow,davidzchen/tensorflow,aldian/tensorflow,alsrgv/tensorflow,DavidNorman/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,gautam1858/tensorflow,Intel-tensorflow/tensorflow,apark263/tensorflow,petewarden/tensorflow,arborh/tensorflow,adit-chandra/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-pywrap_saved_model,karllessard/tensorflow,tensorflow/tensorflow-pywrap_saved_model,petewarden/tensorflow,jbedorf/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,apark263/tensorflow,ageron/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,chemelnucfin/tensorflow,gunan/tensorflow,chemelnucfin/tensorflow,freedomtan/tensorflow,alsrgv/tensorflow,cxxgtxy/tensorflow,paolodedios/tensorflow,xzturn/tensorflow,frreiss/tensorflow-fred,ppwwyyxx/tensorflow,paolodedios/tensorflow,jendap/tensorflow,yongtang/tensorflow,xzturn/tensorflow,Intel-Corporation/tensorflow,aam-at/tensorflow,petewarden/tensorflow,tensorflow/tensorflow,chemelnucfin/tensorflow,aam-at/tensorflow,gautam1858/tensorflow,yongtang/tensorflow,kevin-coder/tensorflow-fork,frreiss/tensorflow-fred,karllessard/tensorflow,aldian/tensorflow,tensorflow/tensorflow-pywrap_saved_model,gautam1858/tensorflow,alsrgv/tensorflow,alsrgv/tensorflow,sarvex/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,theflofly/tensorflow,jbedorf/tensorflow,theflofly/tensorflow,chemelnucfin/tensorflow,Intel-Corporation/tensorflow,xzturn/tensorflow,yongtang/tensorflow,aam-at/tensorflow,tensorflow/tensorflow,frreiss/tensorflow-fred,apark263/tensorflow,davidzchen/tensorflow,jhseu/tensorflow,DavidNorman/tensorflow,adit-chandra/tensorflow,theflofly/tensorflow