Update clang-format

refer: https://github.com/openbmc/docs/blob/master/style/cpp/.clang-format

Tested: built openpower-occ-control successfully.

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I136870023229ff906d471dd4d8debfd404812ff1
diff --git a/occ_manager.hpp b/occ_manager.hpp
index 140b14a..dbb3cf6 100644
--- a/occ_manager.hpp
+++ b/occ_manager.hpp
@@ -11,11 +11,12 @@
 #include "powermode.hpp"
 #endif
 
-#include <cstring>
-#include <functional>
 #include <sdbusplus/bus.hpp>
 #include <sdeventplus/event.hpp>
 #include <sdeventplus/utility/timer.hpp>
+
+#include <cstring>
+#include <functional>
 #include <vector>
 
 namespace sdbusRule = sdbusplus::bus::match::rules;