!16094 modify learning rate for textcnn with datasets sst2 and subj

From: @zhouneng2
Reviewed-by: @c_34,@liangchenghui
Signed-off-by: @c_34

model_zoo/official/nlp/textcnn/sst2_config.yaml

@@ -24,7 +24,7 @@ checkpoint_path: './checkpoint/'
 checkpoint_file_path: 'train_textcnn-4_149.ckpt'
 word_len: 51
 vec_length: 40
-base_lr: 1e-3
+base_lr: 5e-3
 
 # Export options
 device_id: 0

model_zoo/official/nlp/textcnn/subj_config.yaml

@@ -24,7 +24,7 @@ checkpoint_path: './checkpoint/'
 checkpoint_file_path: 'train_textcnn-4_149.ckpt'
 word_len: 51
 vec_length: 40
-base_lr: 1e-3
+base_lr: 8e-4
 
 # Export options
 device_id: 0