Revert "server/smartcard: don't register the channel if no hardware emulated"
Revert "server/smartcard: don't register the channel if no hardware emulated"

This reverts commit 456ff9f8d5d27ac763e89e67a100661084695dc5.

That patch just disabled the smartcard channel completely because
the check was done *before* the initialization of the qemu smartcard
devices, not after.

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