Convert things from AOS logging to glog

This is necessary so ceres (which includes glog) can be included in more
places.

Change-Id: Ie0a54dc6a9e21e0c2f11899d08c87d08c5c0e028
diff --git a/aos/util/file.cc b/aos/util/file.cc
index dc31ddd..f952955 100644
--- a/aos/util/file.cc
+++ b/aos/util/file.cc
@@ -3,6 +3,7 @@
 #include <fcntl.h>
 #include <unistd.h>
 
+#include "aos/logging/logging.h"
 #include "aos/scoped/scoped_fd.h"
 
 namespace aos {