Update Fedora Atomic image to latest F24 image
Update Fedora Atomic image to latest F24 image

Update Fedora Atomic image to latest F24 image and reflect naming change
from Fedora Cloud Atomic to Fedora Atomic.

Change-Id: I8de0f2c26908646bc4786200a48d3f2115d29c8a

stackforge/apps-catalog,stackforge/apps-catalog,stackforge/apps-catalog,stackforge/apps-catalog