Fixes to yangtools feature.xml file
Fixes to yangtools feature.xml file

Change-Id: I54852269f3e42aeae7a9ef54e593ef29e48bfcbb
Signed-off-by: Ed Warnicke <bd21dacf50ae0c2a81d439ae755251c53052fe92@cisco.com>

opendaylight/yangtools,NovusTheory/yangtools,opendaylight/yangtools,522986491/yangtools