clang-format: update to latest from docs repo

This is from openbmc/docs/style/cpp/.clang-format

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: I5b80bb568451706afb6d268b41e1a5357a2ca6db
diff --git a/chassis_state_manager.cpp b/chassis_state_manager.cpp
index 17db4df..6fa10ee 100644
--- a/chassis_state_manager.cpp
+++ b/chassis_state_manager.cpp
@@ -1,16 +1,20 @@
+#include "config.h"
+
+#include "chassis_state_manager.hpp"
+
+#include "xyz/openbmc_project/Common/error.hpp"
+#include "xyz/openbmc_project/State/Shutdown/Power/error.hpp"
+
+#include <cereal/archives/json.hpp>
+#include <phosphor-logging/elog-errors.hpp>
+#include <phosphor-logging/log.hpp>
 #include <sdbusplus/bus.hpp>
 #include <sdbusplus/exception.hpp>
 #include <sdeventplus/event.hpp>
 #include <sdeventplus/exception.hpp>
-#include <phosphor-logging/log.hpp>
-#include <phosphor-logging/elog-errors.hpp>
-#include "xyz/openbmc_project/Common/error.hpp"
-#include "xyz/openbmc_project/State/Shutdown/Power/error.hpp"
-#include "chassis_state_manager.hpp"
-#include <cereal/archives/json.hpp>
-#include <fstream>
-#include "config.h"
+
 #include <experimental/filesystem>
+#include <fstream>
 
 namespace phosphor
 {