VoiceOver does not read DeprecationNotifier lock screen text

[aune3]

VoiceOver does not read DeprecationNotifier lock screen text (the warning screen with the timer that prompts the user to upgrade and says "Click Here" to dismiss). This causes accessibility issues with populations who use screen readers, as without the text on screen being accessible, users who are unable to view the warning screen will experience computer performance issues as the timer increases, without being aware of the cause.