Replace OpenStack LLC with OpenStack Foundation

Some files still use trademark OpenStack LLC in header, which
should be changed to OpenStack Foundation according to
openstack trademark policy:
http://www.openstack.org/brand/openstack-trademark-policy/

Change-Id: I4c71a93931e6a39c33885b64b27fe80229057ff4
Closes-Bug: #1214176
2 files changed