bnx2x, cnic, bnx2i, bnx2fc: Fix bnx2i and bnx2fc regressions.

bnx2x, cnic, bnx2i, bnx2fc: Fix bnx2i and bnx2fc regressions.

commit 66f9b6ae1b7fb6e629e17236b16c220b6a0b8f2a
    bnx2x: VF RSS support - PF side

changed the configuration of the doorbell HW and it broke iSCSI and FCoE.
We fix this by making compatible changes to the doorbell address in bnx2i
and bnx2fc.  For the userspace driver, we need to pass a modified CID
so that the existing userspace driver will calculate the correct doorbell
address and continue to work.

Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>