server: print subtype when adding CHAR_DEVICE interfaces
server: print subtype when adding CHAR_DEVICE interfaces

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