Fix name of novncproxy init script
Fix name of novncproxy init script

It's openstack-nova-novncproxy now, not openstack-novncproxy.

sjamgade/openstack-quickstart,toabctl/openstack-quickstart,wenhuizhang/openstack-quickstart,hayderimran7/openstack-quickstart,sayalilunkad/openstack-quickstart,SUSE-Cloud/openstack-quickstart