bnx2x: store module parameters in driver main structure

Store module parameters during initialization of main driver
structure. This will allow access to the parameters from different
files.

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>