Add AT&T company affiliation
Add AT&T company affiliation

Change-Id: I19edf583ed36f3003d2e9bc76ceda298b72c811b

0xf2/stackalytics,0xf2/stackalytics,openstack/stackalytics,0xf2/stackalytics,stackforge/stackalytics,openstack/stackalytics,0xf2/stackalytics,stackforge/stackalytics,stackforge/stackalytics,openstack/stackalytics,openstack/stackalytics