bnx2x: define fields of struct cfc_del_event_data as little-endian

There were no missing endianness conversions in this case, but the
fields of struct cfc_del_event_data should be defined as little-endian
to get rid of the ugly (__force __le32) casts.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>