change domain from mirantis.com

using mirantis.com breaks the ability to use download.mirantis.com

Change-Id: I64868e3f122cd8ba59a9ea3b9077ccdf0ec5471e
Use new stable repos from osci

Change-Id: I7f3048bbbce760287c068d072d7377d2b22ba1df
Merge "change domain from mirantis.com"