app/eventdev: add crypto producer mode

app/eventdev: add crypto producer mode

In crypto producer mode, producer core enqueues cryptodev with software
generated crypto ops and worker core dequeues crypto completion events
from the eventdev. Event crypto metadata used for above processing is
pre-populated in each crypto session.

Parameter --prod_type_cryptodev can be used to enable crypto producer
mode. Parameter --crypto_adptr_mode can be set to select the crypto
adapter mode, 0 for OP_NEW and 1 for OP_FORWARD.

This mode can be used to measure the performance of crypto adapter.

Example:
  ./dpdk-test-eventdev -l 0-2 -w <EVENTDEV> -w <CRYPTODEV> -- \
  --prod_type_cryptodev --crypto_adptr_mode 1 --test=perf_atq \
  --stlist=a --wlcores 1 --plcores 2

Signed-off-by: Shijith Thotton <sthotton@marvell.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
Acked-by: Abhinandan Gujjar <abhinandan.gujjar@intel.com>