vpnor: Consolidate backend and mboxd_pnor_partition_table sources

Change-Id: Ibf66c3a86c2a50e2304fb968f8c912ede84cf719
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
diff --git a/vpnor/pnor_partition_table.cpp b/vpnor/pnor_partition_table.cpp
index 2a9442b..64a7872 100644
--- a/vpnor/pnor_partition_table.cpp
+++ b/vpnor/pnor_partition_table.cpp
@@ -2,8 +2,13 @@
 // Copyright (C) 2018 IBM Corp.
 #include "config.h"
 
-#include "pnor_partition_table.hpp"
+extern "C" {
+#include "backend.h"
+#include "common.h"
+#include "mboxd.h"
+}
 
+#include "pnor_partition_table.hpp"
 #include "xyz/openbmc_project/Common/error.hpp"
 
 #include <endian.h>
@@ -14,12 +19,6 @@
 #include <phosphor-logging/elog-errors.hpp>
 #include <regex>
 
-extern "C" {
-#include "backend.h"
-#include "common.h"
-#include "mboxd.h"
-}
-
 namespace openpower
 {
 namespace virtual_pnor