bnx2x: Driver info

Driver info
The internal FW which is downloaded by the driver should not be
displayed - it is only causing confusion and it is redundant since it
can be concluded from the driver version. Display only FW which is
burned on the board nvram

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>