Restore asserting DTR by default, lost when cuaU* support was added; tested hshoexer@ henning@, ok henning@
Restore asserting DTR by default, lost when cuaU* support was added;
tested hshoexer@ henning@, ok henning@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars