pulseaudio: Adjust to upstream kernel name

MODEM is now Modem
3 jobs for snd-byz in 4 minutes and 14 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Package
passed #326629
librem5
package:deb-debian

00:00:42

 
  Test Package
passed #326630
librem5
autopkgtest-debian-package

00:03:32

passed #326631
librem5
lintian-debian-package

00:00:37