smartcard: add channel
smartcard: add channel

Fantu/spice-protocol,freedesktop-unofficial-mirror/spice__spice-protocol,vdiot/spice-protocol,dezelin/spice-protocol,freedesktop-unofficial-mirror/spice__spice-protocol,SPICE/spice-protocol,fgouget/spice-protocol,elmarco/spice-protocol,vdiot/spice-protocol,elmarco/spice-protocol,vdiot/spice-protocol,elmarco/spice-protocol,Fantu/spice-protocol,fgouget/spice-protocol,dezelin/spice-protocol,SPICE/spice-protocol,SPICE/spice-protocol,dezelin/spice-protocol,fgouget/spice-protocol