bnx2x: Change BCM848xx LED configuration

Change 848xx LED configuration according to the new microcode (Boards
were shipped with only with the new microcode)

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