fix adb shell exit code not transfered to shell script

tuning_run.sh

@@ -45,19 +45,25 @@ else
   fi
   adb push lib/hexagon/libhexagon_controller.so ${PHONE_DATA_DIR} || exit 1
   
-  adb </dev/null shell \
-    LD_LIBRARY_PATH=${PHONE_DATA_DIR} \
+  mace_adb_output=`adb </dev/null shell \
+    "LD_LIBRARY_PATH=${PHONE_DATA_DIR} \
     MACE_TUNING=${tuning_flag} \
     MACE_CPP_MIN_VLOG_LEVEL=$VLOG_LEVEL \
     MACE_RUN_PARAMETER_PATH=${PHONE_DATA_DIR}/mace_run.config \
     MACE_KERNEL_PATH=$KERNEL_DIR \
     MACE_LIMIT_OPENCL_KERNEL_TIME=${LIMIT_OPENCL_KERNEL_TIME} \
     ${PHONE_DATA_DIR}/mace_run \
-    --input_shape="${INPUT_SHAPE}"\
-    --output_shape="${OUTPUT_SHAPE}"\
+    --input_shape=${INPUT_SHAPE}\
+    --output_shape=${OUTPUT_SHAPE}\
     --input_file=${PHONE_DATA_DIR}/${INPUT_FILE_NAME} \
     --output_file=${PHONE_DATA_DIR}/${OUTPUT_FILE_NAME} \
     --model_data_file=${PHONE_DATA_DIR}/${MODEL_TAG}.data \
     --device=${DEVICE_TYPE}   \
-    --round=$ROUND || exit 1
+    --round=$ROUND; echo \\$?"` || exit 1
+  echo "$mace_adb_output" | head -n -1
+
+  mace_adb_return_code=`echo "$mace_adb_output" | tail -1`
+  if [ $mace_adb_return_code -ne 0 ]; then
+    exit 1
+  fi
 fi