P2PS: Add CPT handling on PD request and response

P2PS: Add CPT handling on PD request and response

On PD Request/follow-on PD Request preparation set a feature capability
CPT value of PD context.

On PD Request processing use a request CPT and service advertisement
CPT priority list to select a feature capability CPT of PD Response.

On follow-on PD Request processing use a request CPT and a CPT priority
list in PD context to select a CPT value of follow on PD Response.

Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>