AS7-6561 Add EJB 3.2 support for passivation disabling via ejb-jar.xml

https://issues.jboss.org/browse/AS7-6561

The commit here completes the pending TODO item for processing the passivation-capable configuration in ejb-jar.xml of EJB 3.2 applications. With this change, the user applications can now either use annotation or ejb-jar.xml to disable passivation for stateful beans of their choice.