Move uuid to //aos:uuid

It is getting usage significantly further outside the logger.  Time to
promote it somewhere better.  I only see it getting used more.

Change-Id: I754739347212f5a3154f68c7b7fc84b9a9074d90
diff --git a/aos/network/message_bridge_protocol.h b/aos/network/message_bridge_protocol.h
index fed859b..d0a28a1 100644
--- a/aos/network/message_bridge_protocol.h
+++ b/aos/network/message_bridge_protocol.h
@@ -4,8 +4,8 @@
 #include <string_view>
 
 #include "aos/configuration.h"
-#include "aos/events/logging/uuid.h"
 #include "aos/network/connect_generated.h"
+#include "aos/uuid.h"
 
 namespace aos {
 namespace message_bridge {