net/bnxt: support socket direct feature

net/bnxt: support socket direct feature

Added support for socket direct feature. This feature
allows to ignore the incoming interface and use other fields
in the packet to identify the flow and forward.

Signed-off-by: Kishore Padmanabha <kishore.padmanabha@broadcom.com>
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Reviewed-by: Mike Baucom <michael.baucom@broadcom.com>
Reviewed-by: Randy Schacher <stuart.schacher@broadcom.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>