Don't print the version twice, but do print a newline before attaching the

Don't print the version twice, but do print a newline before attaching the
PHY.
Put the DMA address of the mbuf into the rx descriptors (instead of the
length).  Use the correct value when setting the tx ring tail pointer.
This make sending and receiving packets work as long as the interface
is in promiscuous mode.

ok patrick@