lavf/mpegts: Consider stream_type 0x0f just a hint towards AAC.

It is also used in the wild to signal latm.

Fixes ticket #6657.

libavformat/mpegts.c

@@ -814,7 +814,7 @@ static int mpegts_set_stream_info(AVStream *st, PESContext *pes,
     st->codecpar->codec_tag = pes->stream_type;
 
     mpegts_find_stream_type(st, pes->stream_type, ISO_types);
-    if (pes->stream_type == 4)
+    if (pes->stream_type == 4 || pes->stream_type == 0x0f)
         st->request_probe = 50;
     if ((prog_reg_desc == AV_RL32("HDMV") ||
          prog_reg_desc == AV_RL32("HDPR")) &&