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/oem/ibm/libpldmresponder/file_io_by_type.cpp b/oem/ibm/libpldmresponder/file_io_by_type.cpp
index 540937c..36f5f6c 100644
--- a/oem/ibm/libpldmresponder/file_io_by_type.cpp
+++ b/oem/ibm/libpldmresponder/file_io_by_type.cpp
@@ -2,6 +2,9 @@
 
 #include "file_io_by_type.hpp"
 
+#include "libpldm/base.h"
+#include "oem/ibm/libpldm/file_io.h"
+
 #include "file_io_type_cert.hpp"
 #include "file_io_type_dump.hpp"
 #include "file_io_type_lid.hpp"
@@ -12,15 +15,13 @@
 #include <stdint.h>
 #include <unistd.h>
 
+#include <xyz/openbmc_project/Logging/Entry/server.hpp>
+
 #include <exception>
 #include <filesystem>
 #include <fstream>
 #include <iostream>
 #include <vector>
-#include <xyz/openbmc_project/Logging/Entry/server.hpp>
-
-#include "libpldm/base.h"
-#include "oem/ibm/libpldm/file_io.h"
 
 namespace pldm
 {