Fix mpeg audio regression test failure

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@16599 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/mpegaudioenc.c

@@ -26,6 +26,9 @@
 
 #include "avcodec.h"
 #include "bitstream.h"
+
+#undef  CONFIG_MPEGAUDIO_HP
+#define CONFIG_MPEGAUDIO_HP 0
 #include "mpegaudio.h"
 
 /* currently, cannot change these constants (need to modify