bnxt_en: Update firmware interface spec to 1.10.1.68.

Main changes is to extend hwrm_nvm_get_dev_info_output() for stored
firmware versions and a new flag is added to fw_status_reg.

Reviewed-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>