Add ids to flatbuffer fields in y2012, y2016, frc971, and aos

Change-Id: I9ed9006ce6224e2df0459df47771786b928164a1
diff --git a/aos/logging/log_message.fbs b/aos/logging/log_message.fbs
index 7e246cf..b68287f 100644
--- a/aos/logging/log_message.fbs
+++ b/aos/logging/log_message.fbs
@@ -18,10 +18,10 @@
   level:Level (id: 1);
 
   // Pid of the process creating the log message
-  source_pid:int (id:2);
+  source_pid:int (id: 2);
 
   // Application name
-  name:string (id:3);
+  name:string (id: 3);
 }
 
 root_type LogMessageFbs;