net/bnxt: provide switch info if VFR are configured

net/bnxt: provide switch info if VFR are configured

Some applications need switch_info of the device to be returned
as a part of eth_dev_info_get(). The offload logic in such
applications could use this info. Pass this info to the when VF
representors are configured.

Fixes: 322bd6e70272 ("net/bnxt: add port representor infrastructure")
Cc: stable@dpdk.org
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>