A new feature requesting additional queues from PF is added in iavf;
before sending VIRTCHNL_OP_REQUEST_QUEUES op code, the offload
capability flag VIRTCHNL_VF_OFFLOAD_REQ_QUEUES will be checked.
And due to DPDK PF is still used by some cases, add this offload
capability flag in i40e PF.
Fixes: cbdbd360f77f ("net/i40e: support AVF basic interface") Cc: stable@dpdk.org Signed-off-by: Robin Zhang <robinx.zhang@intel.com> Acked-by: Jeff Guo <jia.guo@intel.com>