clang-format: update to latest from docs repo

Since `Cpp11` is an alias for `Latest` and we should tend towards using the
latest C++ standard, update the C++ standard to Latest.

https://github.com/llvm/llvm-project/commit/e5032567903de19962333c4bf7d2edceaf4f9824#diff-b49a097415dff2837d9626d422c58ba8R82
https://github.com/openbmc/docs/blob/master/style/cpp/.clang-format

Also, other OpenBMC repos are doing the same.

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I449e88bb4e1e262060110e1a8f3e8db3ddfc74cf
diff --git a/tool/oem/ibm/pldm_host_cmd.cpp b/tool/oem/ibm/pldm_host_cmd.cpp
index cb7e740..4f14e8c 100644
--- a/tool/oem/ibm/pldm_host_cmd.cpp
+++ b/tool/oem/ibm/pldm_host_cmd.cpp
@@ -1,9 +1,9 @@
 #include "pldm_host_cmd.hpp"
 
-#include "../../pldm_cmd_helper.hpp"
-
 #include "oem/ibm/libpldm/host.h"
 
+#include "../../pldm_cmd_helper.hpp"
+
 namespace pldmtool
 {