Fix windows-specific error without messing up Makefile flags.

Bug: 14416410

The proper fix for the error/warning we encountered is to move winsock2.h
in front of windows.h.

Change-Id: I29504ba3a184a85c6636d06c2ad900828fdb5436
diff --git a/sysdeps_win32.c b/sysdeps_win32.c
index 1904325..b082c6d 100644
--- a/sysdeps_win32.c
+++ b/sysdeps_win32.c
@@ -1,6 +1,6 @@
 #include "sysdeps.h"
-#include <windows.h>
 #include <winsock2.h>
+#include <windows.h>
 #include <stdio.h>
 #include <errno.h>
 #define  TRACE_TAG  TRACE_SYSDEPS