The OpenStack operator's defaults struct for OpenStackVersion has a field with private scope:

type OpenStackVersionDefaults struct {
    availableVersion string
} 

As a result, when the struct is instantiated as an object and then passed for printing to the logging package, the "availableVersion" is missing entirely and the logs will lack the desired information.

We should change the scope of "availableVersion" to be public by renaming it to "AvailableVersion" so that we have the defaults that were used saved in the logs.