Update RHOS to 4.0

Updated satellite and RHSM RHOS channel names
Updated rhel-boot-image package and ISO filename
Updated paths to 6.5
Removed libqb workaround
Removed swift-ring-builder workaround

Change-Id: I4310477e8b08a990b083fab26fd297f3fc4372a7
Closes-Bug: #1267802