!16046 Enable acceleration by Graph Kernel for Wide&Deep base model.

From: @lishanni513
Reviewed-by: @gaoxiong1,@dylangeng
Signed-off-by: @dylangeng

model_zoo/official/recommend/wide_and_deep/train.py

@@ -89,5 +89,5 @@ if __name__ == "__main__":
     config = WideDeepConfig()
     config.argparse_init()
 
-    context.set_context(mode=context.GRAPH_MODE, device_target=config.device_target)
+    context.set_context(mode=context.GRAPH_MODE, enable_graph_kernel=True, device_target=config.device_target)
     test_train(config)

model_zoo/official/recommend/wide_and_deep/train_and_eval.py

@@ -106,6 +106,6 @@ if __name__ == "__main__":
     wide_deep_config = WideDeepConfig()
     wide_deep_config.argparse_init()
 
-    context.set_context(mode=context.GRAPH_MODE, device_target=wide_deep_config.device_target)
+    context.set_context(mode=context.GRAPH_MODE, enable_graph_kernel=True, device_target=wide_deep_config.device_target)
     context.set_context(enable_sparse=wide_deep_config.sparse)
     test_train_eval(wide_deep_config)