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/utils.cpp b/utils.cpp
index 9a412a3..73ee3a7 100644
--- a/utils.cpp
+++ b/utils.cpp
@@ -2,8 +2,9 @@
 
 #include <phosphor-logging/elog-errors.hpp>
 #include <sdbusplus/bus.hpp>
-#include <string>
 #include <xyz/openbmc_project/Common/error.hpp>
+
+#include <string>
 namespace open_power
 {
 namespace occ