net/bnxt: add Rx logic for 58818 chips

net/bnxt: add Rx logic for 58818 chips

1. On the new 58818 chips, the RX completion is largely the same except
   for the new completion opcode and the stripped VLAN format and
   checksum status. Added bnxt_parse_csum_v2(), bnxt_parse_pkt_type_v2()
   and bnxt_rx_vlan_v2() to support the new RX completion logic.
2. Disable vector mode RX/TX for 58818 chips for now.
3. The cfa_code format on 58818 chips is different than legacy chips.
   So skip cfa_code parsing logic on 58818 chips for now.

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>