Fix a crash bug when avcodec_fill_audio_frame() decided we needed more alignment.

[nageru] / bmusb

diff --git a/bmusb b/bmusb
index 6a027cb2d982c385859150ad1558a1e205817844..ec10aedf720f2356035255999827beb4158aa4a2 160000 (submodule)
--- a/bmusb
+++ b/bmusb
@@ -1 +1 @@
-Subproject commit 6a027cb2d982c385859150ad1558a1e205817844
+Subproject commit ec10aedf720f2356035255999827beb4158aa4a2