net/failsafe: add TCP TSO default Tx capability
net/failsafe: add TCP TSO default Tx capability

Add DEV_TX_OFFLOAD_TCP_TSO to failsafe Tx offload default capabilities.
The net result of failsafe Tx capabilities is the logical AND of Tx
capabilities among all failsafe sub_devices and failsafe own default
capabilities.

Signed-off-by: Ophir Munk <da2dc1f9ae64c8bd405ef0cf049405a44490d24e@mellanox.com>
Acked-by: Gaetan Rivet <a6b9f1aecd7707f01344f211143eb3bcaeb0c5c3@6wind.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk