If a project has a lot of images, options can be quite long, and
cause wrong selctiong by mistake. So I add a filter after fetching
images, now images that has "os_distro" property and it's value is
one of "fedora-atomic", "coreos" and "ubuntu" are shown
Story: 2003614
Task: 25739
Change-Id: I8db4422f4cf528da0ec592525851cc2c709fff7c