[xenclient-root-ro]: Relabel r/w mounts on firstboot for measured firstboot path.
[xenclient-config-access]: Relabel /config on firstboot.
[xenclient-dom0-tweaks]: Make SELinux file labeling more targeted in firstboot.sh

Now that the bulk relabeling of the persistent volumes is handled
closer to where they're mounted the firstboot script can be more
targeted. This should make the first boot path a bit faster and the
firstboot script a bit more clean.
[xenclient-dom0-tweaks]: Remvoe autorelabel script.

This script doesn't fit well into the "embedded" model of OpenXT.
The problem this script is intended to solve (relabeling file systems)
should only be done OpenXT at the time of the firstboot.