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/watch.cpp b/watch.cpp
index 3cacefd..ffac972 100644
--- a/watch.cpp
+++ b/watch.cpp
@@ -1,11 +1,11 @@
 #include "watch.hpp"
 
-#include <xyz/openbmc_project/Common/error.hpp>
-#include <phosphor-logging/log.hpp>
-#include <phosphor-logging/elog-errors.hpp>
-
-#include <sys/inotify.h>
 #include <errno.h>
+#include <sys/inotify.h>
+
+#include <phosphor-logging/elog-errors.hpp>
+#include <phosphor-logging/log.hpp>
+#include <xyz/openbmc_project/Common/error.hpp>
 
 namespace phosphor
 {