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

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: Id5684236b64867ba631a3a00dadababe2c36db16
diff --git a/physical.hpp b/physical.hpp
index 9be62fe..383c98a 100644
--- a/physical.hpp
+++ b/physical.hpp
@@ -2,12 +2,13 @@
 
 #include "sysfs.hpp"
 
-#include <fstream>
 #include <sdbusplus/bus.hpp>
 #include <sdbusplus/server/object.hpp>
-#include <string>
 #include <xyz/openbmc_project/Led/Physical/server.hpp>
 
+#include <fstream>
+#include <string>
+
 namespace phosphor
 {
 namespace led
@@ -18,8 +19,9 @@
 /** @class Physical
  *  @brief Responsible for applying actions on a particular physical LED
  */
-class Physical : public sdbusplus::server::object::object<
-                     sdbusplus::xyz::openbmc_project::Led::server::Physical>
+class Physical :
+    public sdbusplus::server::object::object<
+        sdbusplus::xyz::openbmc_project::Led::server::Physical>
 {
   public:
     Physical() = delete;