clang-format: Update to match docs repo

Update the .clang-format file.
Now includes header sorting and updating PointerAlignment.

Change-Id: I5c7690d8d83cdebe26ff3a73b90a2a8c17dd8054
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/sync_watch.hpp b/sync_watch.hpp
index 4303671..30ea5f7 100644
--- a/sync_watch.hpp
+++ b/sync_watch.hpp
@@ -1,8 +1,10 @@
 #pragma once
 
+#include <systemd/sd-event.h>
+
 #include <experimental/filesystem>
 #include <functional>
-#include <systemd/sd-event.h>
+#include <map>
 
 namespace phosphor
 {