Defines in src/od-beos

• DEFAULT_SOUND_BITS src/od-beos/sound.h:32
• DEFAULT_SOUND_FREQ src/od-beos/sound.h:33
• DEFAULT_SOUND_MAXB src/od-beos/sound.h:30
• DEFAULT_SOUND_MINB src/od-beos/sound.h:31
• HAVE_STEREO_SUPPORT src/od-beos/sound.h:34
• SOUND16_BASE_VAL src/od-beos/sound.h:27
• SOUND8_BASE_VAL src/od-beos/sound.h:28