This patch adds a policy name to the policy definition. This policy name

This patch adds a policy name to the policy definition. This policy name
must be unique and must change if the content of the file changes. The
policy name is used to ensure that the XM tools and the hypervisor work
on the same policy, i.e., interpret the security information on domains
consistently. This patch also simplifies the policy management by moving
policy and labels into a single file.

Signed-off by: Reiner Sailer <sailer@us.ibm.com>