reorder headers

Reordering all the headers to the following structure:

header file:
local
c
cpp (including openbmc libraries)

source file:
source.hpp (if applicable)
local
c
cpp

Change-Id: Ia74a5c761a3029819366159de3cfd40c5e4c4a2c
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/types.hpp b/types.hpp
index 46ce020..c155e40 100644
--- a/types.hpp
+++ b/types.hpp
@@ -1,16 +1,16 @@
 #pragma once
 
 #include <ifaddrs.h>
+#include <systemd/sd-event.h>
 
+#include <chrono>
 #include <functional>
 #include <list>
-#include <string>
-#include <vector>
 #include <map>
 #include <memory>
 #include <set>
-#include <chrono>
-#include <systemd/sd-event.h>
+#include <string>
+#include <vector>
 
 namespace phosphor
 {