don't fail if the audio device is busy, just skip.

SF patch 545486

Lib/test/test_linuxaudiodev.py

@@ -25,7 +25,7 @@ def play_sound_file(path):
     try:
         a = linuxaudiodev.open('w')
     except linuxaudiodev.error, msg:
-        if msg[0] in (errno.EACCES, errno.ENODEV):
+        if msg[0] in (errno.EACCES, errno.ENODEV, errno.EBUSY):
             raise TestSkipped, msg
         raise TestFailed, msg