WavPack demuxer supports ID3v1 tags, so don't forget id3v1.o dependency for it

in Makefile

Originally committed as revision 21891 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/Makefile

@@ -250,7 +250,7 @@ OBJS-$(CONFIG_WAV_MUXER)                 += wav.o riff.o
 OBJS-$(CONFIG_WC3_DEMUXER)               += wc3movie.o
 OBJS-$(CONFIG_WSAUD_DEMUXER)             += westwood.o
 OBJS-$(CONFIG_WSVQA_DEMUXER)             += westwood.o
-OBJS-$(CONFIG_WV_DEMUXER)                += wv.o
+OBJS-$(CONFIG_WV_DEMUXER)                += wv.o id3v1.o
 OBJS-$(CONFIG_XA_DEMUXER)                += xa.o
 OBJS-$(CONFIG_YUV4MPEGPIPE_MUXER)        += yuv4mpeg.o
 OBJS-$(CONFIG_YUV4MPEGPIPE_DEMUXER)      += yuv4mpeg.o