netxen_nic: Error logging on firmware hang

Log states of essential registers on firmware hang detection.

Signed-off-by: Sritej Velaga <sritej.velaga@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc drivers/net/ethernet/qlogic/netxen/netxen_nic_hdr.h
Simple merge

diff --cc drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
Simple merge