Fix up the AOS RingBuffer to not default construct and iterate better

This lets us put more complicated objects in it.

Change-Id: I19ef2e1934c30e5f10ecdac9d9e8af03282c97aa
diff --git a/aos/containers/BUILD b/aos/containers/BUILD
index 70d98f1..e9f8262 100644
--- a/aos/containers/BUILD
+++ b/aos/containers/BUILD
@@ -17,6 +17,7 @@
     deps = [
         ":ring_buffer",
         "//aos/testing:googletest",
+        "@com_github_google_glog//:glog",
     ],
 )