examples/l3fwd: fix Rx burst size for event mode
examples/l3fwd: fix Rx burst size for event mode

While dequeuing the packets from the event device, burst size
is provided in the API. This was not getting properly
configured in the application. This patch correctly configures
the burst size.

Fixes: aaf58cb85b62 ("examples/l3fwd: add event port and queue setup")
Cc: stable@dpdk.org

Signed-off-by: Nipun Gupta <4871fd67344c57328097f2fd932ad9a0f1f1fe74@nxp.com>
Acked-by: Sunil Kumar Kori <bdee174bc83e2fb76d979ba14c67b948a0d67de5@marvell.com>

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