fix server system

test_tipc/configs/ch_ppocr_mobile_v2.0/model_linux_gpu_normal_normal_infer_python_linux_gpu_cpu.txt

@@ -15,7 +15,7 @@ inference:tools/infer/predict_system.py
 --precision:fp32|fp16
 --det_model_dir:
 --image_dir:./inference/ch_det_data_50/all-sum-510/
---rec_model_dir:./inference/ch_ppocr_mobile_v2.0_rec_infer/
---benchmark:True
 null:null
+--benchmark:True
+--rec_model_dir:./inference/ch_ppocr_mobile_v2.0_rec_infer/
 null:null

test_tipc/configs/ch_ppocr_server_v2.0/model_linux_gpu_normal_normal_infer_python_linux_gpu_cpu.txt

 ===========================ch_ppocr_mobile_v2.0===========================
 model_name:ch_ppocr_server_v2.0
 python:python3.7
+null:null
+null:null
 infer_model:./inference/ch_ppocr_server_v2.0_det_infer/
 infer_export:null
 infer_quant:True