core: move definition of NMLinkType to nm-types.h

As we use NMLinkType in NetworkManagerUtils.h, we cannot use
the utils header without nm-platform.h. That is clearly wrong.
Apparently NMLinkType has a wider use outside of platform (and
its name is not prefixed with 'platform' either).

Move the enum definition to nm-types.h.

Signed-off-by: Thomas Haller <thaller@redhat.com>

src/NetworkManagerUtils.h

@@ -24,9 +24,10 @@
 
 #include <glib.h>
 #include <stdio.h>
+#include <arpa/inet.h>
 
 #include "nm-connection.h"
-#include "nm-platform.h"
+#include "nm-types.h"
 
 gboolean nm_ethernet_address_is_valid (gconstpointer addr, gssize len);