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/BUILD b/aos/util/BUILD
index af6faf5..7b50f49 100644
--- a/aos/util/BUILD
+++ b/aos/util/BUILD
@@ -295,6 +295,7 @@
         "file.h",
     ],
     deps = [
+        "//aos/logging",
         "//aos/scoped:scoped_fd",
     ],
 )
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 {