red_worker: reuse DCC_FOREACH in WORKER_DCC_FOREACH
red_worker: reuse DCC_FOREACH in WORKER_DCC_FOREACH

The only thing that is needed is to get the channel out of the worker.

alon/spice-server,elmarco/spice,freedesktop-unofficial-mirror/spice__spice,ya-mouse/spice,alon/spice-server,elmarco/spice,freedesktop-unofficial-mirror/spice__spice,ya-mouse/spice,Fantu/spice,fgouget/spice,elmarco/spice,freedesktop-unofficial-mirror/spice__spice,ya-mouse/spice,freedesktop-unofficial-mirror/spice__spice,alon/spice-server,Fantu/spice,fgouget/spice,Fantu/spice,elmarco/spice,fgouget/spice,SPICE/spice,SPICE/spice,SPICE/spice,Fantu/spice,freedesktop-unofficial-mirror/spice__spice,fgouget/spice,alon/spice-server,elmarco/spice,alon/spice-server