avformat/mov_chan: use a higher log level for a debug message

Trace is too noisy and this line is useful enough to get it printed
at debug level.

Signed-off-by: James Almer <jamrial@gmail.com>

libavformat/mov_chan.c

@@ -574,7 +574,7 @@ int ff_mov_read_chan(AVFormatContext *s, AVIOContext *pb, AVStream *st,
     bitmap     = avio_rb32(pb);
     num_descr  = avio_rb32(pb);
 
-    av_log(s, AV_LOG_TRACE, "chan: layout=%"PRIu32" "
+    av_log(s, AV_LOG_DEBUG, "chan: layout=%"PRIu32" "
            "bitmap=%"PRIu32" num_descr=%"PRIu32"\n",
            layout_tag, bitmap, num_descr);