Update xmodel script

tools/xmodel

@@ -12,7 +12,7 @@ clean() {
 sync() {
     echo "xmodel sync"
     mkdir -p ./third_party/source/xmodel/tools/Vitis-AI-Library/usefultools/src
-    curl --silent --location --output "./third_party/source/xmodel/tools/Vitis-AI-Library/usefultools/src/xir_graph_proto_v2.proto" "https://github.com/Xilinx/Vitis-AI/blob/master/tools/Vitis-AI-Library/usefultools/src/xir_graph_proto_v2.proto?raw=true"
+    curl --silent --location --output "./third_party/source/xmodel/tools/Vitis-AI-Library/usefultools/src/xir_graph_proto_v2.proto" "https://github.com/Xilinx/Vitis-AI/blob/master/src/Vitis-AI-Library/usefultools/src/xir_graph_proto_v2.proto?raw=true"
 }