New Ethernet device. Descriptors are now done via DMA instead

of faking it.  Renamed stuff to follow our style.  Lots of
general cleanup.

dev/etherpkt.hh:
    fix up includes

--HG--
extra : convert_revision : fb3a21466cdae00f8747d6e3027c9f2c63569c48

dev/etherpkt.hh

@@ -33,10 +33,10 @@
 #ifndef __ETHERPKT_HH__
 #define __ETHERPKT_HH__
 
+#include <iosfwd>
 #include <memory>
 
 #include "sim/host.hh"
-
 #include "base/refcnt.hh"
 
 class Checkpoint;