Update y2020 configs with 5th pi + timestamp channels

Also, update the drivetrain_replay_test to go with it.

Change-Id: Ic88b2f79b14b260e345cfec4f3e5ce3e16a5bd2f
diff --git a/aos/network/timestamp_channel.cc b/aos/network/timestamp_channel.cc
index d022b60..bc8c1d9 100644
--- a/aos/network/timestamp_channel.cc
+++ b/aos/network/timestamp_channel.cc
@@ -42,7 +42,7 @@
       RemoteMessage::GetFullyQualifiedName(), name_, node_, true);
   if (shared_timestamp_channel != nullptr) {
     LOG(WARNING) << "Failed to find timestamp channel {\"name\": \""
-                 << split_timestamp_channel << "\", \"type\": \""
+                 << split_timestamp_channel_name << "\", \"type\": \""
                  << RemoteMessage::GetFullyQualifiedName()
                  << "\"}, falling back to old version.";
     return shared_timestamp_channel;