SnapdragonCamera: Hide UI after error-checking video preferences

* Hiding the UI before error-checking the video preferences when
  video recording starts results in a broken UI when one of the
  error cases evaluates to be true.
* Hide the UI after the error checking to prevent the UI from
  breaking when an error is found.

Change-Id: Ia98798dbf2a33800d47497630714af17865767c6
1 file changed