if converters in a group are not needed to satisfy the requirements of a stream, direct the unneeded converters use HDA link stream #0
if converters in a group are not needed to satisfy the requirements
of a stream, direct the unneeded converters use HDA link stream #0

from NetBSD via Alexey Suslikov, thanks

tested by several, thanks also

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