cryptodev: retrieve device info

cryptodev: retrieve device info

This patch adds helper functions for new performance application which
provide identifiers and number of crypto device and
provide and check capabilities available for defined device and algorithm.
The performance application can be used to measure throughput and latency
of cryptography operation performed by crypto device.

Signed-off-by: Declan Doherty <declan.doherty@intel.com>
Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
Signed-off-by: Marcin Kerlin <marcinx.kerlin@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>