Make sure to process all incoming DataObject modifications under
netconf-keystore:keystore container. Do not stop after handling
key-credential list items, handle also modified private-key and
trusted-certificate list items.
JIRA: NETCONF-598
Change-Id: I7e56791c46bd860f98259f73f2832e49abc2e3dc Signed-off-by: Jakub Morvay <jmorvay@frinx.io>