Multi-segs Tx is already supported by CXGBE PMD. So, add the missing
DEV_TX_OFFLOAD_MULTI_SEGS flag to the list of supported Tx offload
features.
Fixes: 436125e64174 ("net/cxgbe: update to Rx/Tx offload API")
Cc: stable@dpdk.org
Reported-by: Chas Williams <3chas3@gmail.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>