Let all our images log volatile (not only xfce4-music-image)

should have done this much earlier:

* Don't ruin sd-cards on machines running 24/7
* On Raspi4 it buys us boot time reduced by ~2s
* Was never happy about the misleading entries in journal from boots long ago

Signed-off-by: Andreas Müller <schnitzeltony@gmail.com>

conf/distro/mortsgna.conf

@@ -193,6 +193,7 @@ EXTRA_IMAGE_FEATURES += " \
     empty-root-password \
     allow-empty-password \
     post-install-logging \
+    volatile-log \
 "
 
 # make x11-base a valid IMAGE_FEATURES

recipes-image/xfce4/xfce4-music-image.bb

@@ -4,9 +4,6 @@ export IMAGE_BASENAME = "xfce4-music-image"
 
 XFCE_DM = "sddm sddm-morona-autologin"
 
-# Saving to SDCard creates delays/underruns
-IMAGE_FEATURES += "volatile-log"
-
 IMAGE_INSTALL += " \
     packagegroup-gui-musicians \
     \