xenapi: volume not tagged in boot from volume case

[Renuka Apte]

Since this change: https://review.openstack.org/#/c/10574, we require that all volumes that were created by openstack need to be tagged 'osvol'. This is later used to determine whether they should be destroyed when the VM is terminated.

Boot from volume does not tag volumes, which causes them to be deleted on termination.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/14267

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/14267
Committed: http://github.com/openstack/nova/commit/a0640a73df0d88d5c3c09c08cfb389fccff96b33
Submitter: Jenkins
Branch: master

commit a0640a73df0d88d5c3c09c08cfb389fccff96b33
Author: Renuka Apte <email address hidden>
Date: Tue Oct 9 11:38:08 2012 -0700

    xenapi: Tag volumes in boot from volume case

    Fixes bug 1064134

    Since https://review.openstack.org/#/c/10574, we require that all
    openstack volumes are tagged, so as to distinguish them from other
    disks that could be deleted on instance termination.

    Change-Id: I965f88bf41d39be88f2331ad081f5cec71a65a0f