Drop more hardware-dependent files from the SquashFS sort list

bin/clean-squashfs-sort-file

@@ -22,6 +22,7 @@ perl -ni \
            | \A(?:lib/live/mount/overlay/rw/)?etc/skel/[.]config/autostart/end-profile[.]desktop\s
            | \Alib/modules/.*/kernel/drivers/(?:cpufreq|net|thermal)/
            | \Alib/modules/.*/kernel/net/
+           | \Ausr/share/pulseaudio/alsa-mixer/
            | \Arun/
            | \Avar/lib/AccountsService/users/Debian-gdm\s
            | \Avar/lib/gdm3/[#]\d+\s