References to /dev/block/sda2 may stop working with containierization

BUG: 32239484
diff --git a/public/data/default.config b/public/data/default.config
index 8c6e8fb..88ee324 100644
--- a/public/data/default.config
+++ b/public/data/default.config
@@ -35,7 +35,7 @@
 
   metadata_variable {
     key: "cfg_sta_persistent_data_device"
-    value: "/dev/block/sda2"
+    value: "default"
   }
 
   metadata_variable {