!3283 change directory of GCN and GAT from model_zoo to model_zoo/official/gnn

Merge pull request !3283 from chentingting/change_gnn_dir2

tests/st/gnn/gcn/test_gcn.py

@@ -17,10 +17,10 @@ import time
 import pytest
 import numpy as np
 from mindspore import context
-from model_zoo.gnn.gcn.src.gcn import GCN
-from model_zoo.gnn.gcn.src.metrics import LossAccuracyWrapper, TrainNetWrapper
-from model_zoo.gnn.gcn.src.config import ConfigGCN
-from model_zoo.gnn.gcn.src.dataset import get_adj_features_labels, get_mask
+from model_zoo.official.gnn.gcn.src.gcn import GCN
+from model_zoo.official.gnn.gcn.src.metrics import LossAccuracyWrapper, TrainNetWrapper
+from model_zoo.official.gnn.gcn.src.config import ConfigGCN
+from model_zoo.official.gnn.gcn.src.dataset import get_adj_features_labels, get_mask
 
 
 DATA_DIR = '/home/workspace/mindspore_dataset/cora/cora_mr/cora_mr'