iOS: Unify translation of iOS-Device.

Change-Id: I01374545ec3882a1dc9b08adccf4632f38438efb
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>
iOS: Add Linguist comment.

Change-Id: I4eac32fdda32cb5d6a4d8676b25884d5a9e205ea
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>