register cyuv with allcodecs.c

Originally committed as revision 1563 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/allcodecs.c

@@ -86,6 +86,7 @@ void avcodec_register_all(void)
     register_avcodec(&mace3_decoder);
     register_avcodec(&mace6_decoder);
     register_avcodec(&huffyuv_decoder);
+    register_avcodec(&cyuv_decoder);
 #ifdef CONFIG_AC3
     register_avcodec(&ac3_decoder);
 #endif