examples/ipsec-secgw: fix default flow rule creation
examples/ipsec-secgw: fix default flow rule creation

Fix default flow rule to create after ethdev start to align
with rte_flow spec.

Fixes: 513f192b5fd4 ("examples/ipsec-secgw: add default flow for inline Rx")
Cc: stable@dpdk.org

Signed-off-by: Nithin Dabilpuram <5876e1d9ac41f57357c508f9123b8d030ff3606b@marvell.com>
Acked-by: Akhil Goyal <c3c9da6f7a1dc963875aa67cfd85a4c94f75d526@marvell.com>

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