p11-kit-proxy in newer distributions handles loading the OpenSC
PKCS#11 library so don't try to add it to the NSS database in
/etc/pki/nssdb if it is already available in order to avoid a
potentially confusing error message.
https://pagure.io/freeipa/issue/8934
Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>