User Story:
As an OpenShift Engineer I need to ensure the the MAPI Operator.

Description: 
This task is to verify if any changes are needed in the MAPI Operator to handle the change data disk definitions in the CPMS.

Acceptance Criteria:
   - Adding a disk to MachineSet does not result in new machines being rolled out.
   - Removing a disk from MachineSet does not result in new machines being rolled out.
   - After making changes to a MachineSet related to data disks, when MachineSet is scaled down and then up, new machines contain the new data disk configurations.
   - All attempts to modify existing data disk definitions in an existing Machine definition are blocked by the webhook.

Notes:
The behaviors for the data disk field should be the same as all other provider spec level fields.  We want to make sure that the new fields are no different than the others.  This field is not hot swap capable for running machines.  A new VM must be created for this feature to work.