Test pkcs11 URI support for UEFI capsule generation. Both
public certificate and private key are used over pkcs11
protocol.
Pkcs11-tool has been introduced as softhsm tool doesn't have
functionality to import certificates in commonly distributed
version (only in the latest).
Signed-off-by: Wojciech Dubowik <Wojciech.Dubowik@mt.com>
Reviewed-by: Simon Glass <simon.glass@canonical.com>