Update y2022 configs to be multi-node

Signed-off-by: milind-u <milind.upadhyay@gmail.com>
Change-Id: Ice778cba24dcf6911d23d5c69a63f50cc2fa8a6f
diff --git a/y2022/vision/target_estimate.fbs b/y2022/vision/target_estimate.fbs
index 075c9c4..e22654a 100644
--- a/y2022/vision/target_estimate.fbs
+++ b/y2022/vision/target_estimate.fbs
@@ -10,3 +10,5 @@
 
   // TODO(milind): add confidence and blob stats
 }
+
+root_type TargetEstimate;