net/bnxt: add matching protocol header info

net/bnxt: add matching protocol header info

The protocol header are implicitly matched based on the proto
field data. For instance, if ether type is set as 0x800 in the
ether header then ipv4 protocol header is assumed to be present
for template matching even if ipv4 header is not present in the
given flow pattern.

Signed-off-by: Kishore Padmanabha <kishore.padmanabha@broadcom.com>
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Mike Baucom <michael.baucom@broadcom.com>