crypto/ccp: support device init

CCP PMD is a virtual crypto PMD which schedules a number of available
actual CCP hardware engines underneath. The PMD
manages all devices by its own. The PMD supports CCP_5a and
CCP_5b versions of crypto engines and this patch adds support
to initialize and use such devices.

Signed-off-by: Ravi Kumar <ravi1.kumar@amd.com>