update .clang-format header inclusion order

Added the header inclusion order to the .clang-format file generated
these changes.

Change-Id: Ia31b21d7ea451cac0309828006bc17c27cbd5bd5
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/example/asio-example.cpp b/example/asio-example.cpp
index 7477357..31b55f2 100644
--- a/example/asio-example.cpp
+++ b/example/asio-example.cpp
@@ -1,11 +1,11 @@
-#include <iostream>
-#include <ctime>
+#include <boost/asio.hpp>
 #include <chrono>
-#include <sdbusplus/bus.hpp>
-#include <sdbusplus/server.hpp>
+#include <ctime>
+#include <iostream>
 #include <sdbusplus/asio/connection.hpp>
 #include <sdbusplus/asio/object_server.hpp>
-#include <boost/asio.hpp>
+#include <sdbusplus/bus.hpp>
+#include <sdbusplus/server.hpp>
 
 int foo(int test)
 {