Pointed out by: Tatoku Ogaito <tacha@trap.fukui-med.ac.jp>
Semiconductor CS461x/428x. - Add support for GUS and CS461x/428x pcm. Bridges reviewed by: dfr, cg GUS non-PnP support submitted by: Ville-Pertti Keinonen <will@iki.fi> GUS PnP support tested by: Michiru Saito <mich@mtci.ne.jp>