pcnet: port to vmstate

Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/hw/pcnet.h b/hw/pcnet.h
index a94b605..e61d5a4 100644
--- a/hw/pcnet.h
+++ b/hw/pcnet.h
@@ -35,5 +35,4 @@
 void pcnet_common_cleanup(PCNetState *d);
 int pcnet_common_init(DeviceState *dev, PCNetState *s,
                       NetCleanup *cleanup);
-void pcnet_save(QEMUFile *f, void *opaque);
-int pcnet_load(QEMUFile *f, void *opaque, int version_id);
+extern const VMStateDescription vmstate_pcnet;