asset/manifests: Load Openshift asset from disk
asset/manifests: Load Openshift asset from disk

The Openshift manifests asset does not load its files from disk. It reads
the files but does not store them in the object. This was changed in
commit ac11b74cc513fbf9362de72c84e09bb524cbc55c, presumably by mistake.

Fixes https://jira.coreos.com/browse/CORS-939

derekhiggins/installer,derekhiggins/installer