qlcnic: change driver description

o Remove extra printing of mac address
o This driver also supports NIC only Qlogic adapters.

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