Add the following missing flags to the advertised offloads.
- DEV_RX_OFFLOAD_CRC_STRIP
CRC is always stripped.
- DEV_RX_OFFLOAD_JUMBO_FRAME
Jumbo support is always enabled on the NIC.
- DEV_RX_OFFLOAD_SCATTER
Scatter Rx is currently supported.
- DEV_TX_OFFLOAD_MULTI_SEGS
Multiple-segment transmit has always been supported.
Fixes: 93fb21fdbe23 ("net/enic: enable overlay offload for VXLAN and GENEVE")
Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>