[Provider Model] Refine progress bar (QS Internet Dialog)

- Dynamically set the Indeterminate parameter to avoid animation
initialization issues.

- If the status has not changed, avoid restarting the progress bar.

Bug: 206061969
Bug: 208702776
Test: manual test
atest -c InternetDialogTest

Change-Id: I265a68126fd523f1996c09072f5a9220f9cb5adf