Fix the concurrency issue agent queue creation and VM agent

This fix moves queue creation code to initialize section in order to
have a queue created before Murano agent on the spawned VM will try to use it.

Change-Id: Ic7352042e9e1b48d227a8b572ae8ae91798c7487
Closes-Bug: #1349472
Merge "Fix the concurrency issue agent queue creation and VM agent"