Add mod_ssml to Debian packaging

debian/control-modules

@@ -527,6 +527,10 @@ Description: mod_sndfile
  Adds mod_sndfile.
 Build-Depends: libflac-dev, libogg-dev, libvorbis-dev
 
+Module: formats/mod_ssml
+Description: mod_ssml
+ Adds mod_ssml.
+
 Module: formats/mod_tone_stream
 Description: mod_tone_stream
  Adds mod_tone_stream.