Do not crash with IA2 AT clients.

Make sure all members of the IA2Locale we return are properly
initialized. Only accProbe provoked this bug, and I have no idea why
this haven't crashed earlier.

nvda probably does not query the locale, therefore it was unaffected.

Change-Id: I5a9d98eed5af56fd2a75f6cb7035ed613fd802d5
Reviewed-by: Jan Arve Sæther <jan-arve.saether@digia.com>