test/crypto-perf: fix ARMv8 session creation
test/crypto-perf: fix ARMv8 session creation

Session was NULL as test_crypto_session not initialised.

Fixes: b3bbd9e5f265 ("cryptodev: support device independent sessions")

Signed-off-by: Srisivasubramanian S <b09481c7124228acae74b19ea95ca47d55a9bb20@caviumnetworks.com>

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