sound: get udev-alsa back

It's old, it uses consolekit (even if not neccessarily),
it borders obsolescence *but* removal of udev-alsa has caused
massive regressions (e.g. regular-gnome3 had soundcard mixer
levels dropped to zero from the start, regular-razorqt added
inability to poweroff to that...).

Just get it back.

conf.d/live.mk

@@ -49,8 +49,7 @@ distro/live-rescue: distro/live-icewm use/efi
 		$(call tags,(base || extra) && (archive || rescue || network)))
 
 # NB: this one doesn't include the browser, needs to be chosen downstream
-distro/.live-webkiosk: distro/.live-kiosk use/live/hooks use/live/ru \
-	use/sound/alsa
+distro/.live-webkiosk: distro/.live-kiosk use/live/hooks use/live/ru use/sound
 	@$(call add,LIVE_LISTS,$(call tags,desktop && (live || network)))
 	@$(call add,CLEANUP_PACKAGES,'libqt4*' 'qt4*')
 

features.in/sound/config.mk

@@ -1,14 +1,10 @@
 +pulse: use/sound/pulse; @:
 
-# common ALSA based part
+# "bare" ALSA (which is good enough for many of us) with persistent levels
 use/sound:
 	@$(call add_feature)
 	@$(call add,THE_KMODULES,alsa)
-	@$(call add,THE_PACKAGES,amixer alsa-utils aplay)
-
-# "bare" ALSA (which is good enough for many of us) with persistent levels
-use/sound/alsa: use/sound
-	@$(call add,THE_PACKAGES,udev-alsa)
+	@$(call add,THE_PACKAGES,amixer alsa-utils aplay udev-alsa)
 
 # PulseAudio (useful for per-app levels, dynamic devices and networked sound)
 use/sound/pulse: use/sound