bnx2x: fix link notification

Report link to OS and other PFs after HW is fully reconfigured
according to new link parameters. (Affected only Multi Function modes).

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