!2769 modify cust json file to 3.1 rls

Merge pull request !2769 from 杨清/cherry-pick-1647941162

customization/cust/custjs/Test.json

@@ -17,12 +17,12 @@
         {
             "type": "ShellKit",
             "run-command": [
-                "mkdir -p /system/etc/custxmltest/",
-                "mkdir -p /sys-prod/etc/custxmltest/",
-                "touch /system/etc/custxmltest/system.xml",
-                "touch /system/etc/custxmltest/both.xml",
-                "touch /sys-prod/etc/custxmltest/both.xml",
-                "touch /sys-prod/etc/custxmltest/user.xml"
+                "mkdir -p /system/custxmltest/",
+                "mkdir -p /sys_prod/custxmltest/",
+                "touch /system/custxmltest/system.xml",
+                "touch /system/custxmltest/both.xml",
+                "touch /sys_prod/custxmltest/both.xml",
+                "touch /sys_prod/custxmltest/user.xml"
             ]
         }
     ]