MP4: do not warn about unsupported control query

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modules/demux/mp4/mp4.c

@@ -1020,6 +1020,7 @@ static int Control( demux_t *p_demux, int i_query, va_list args )
         case DEMUX_HAS_UNSUPPORTED_META:
         case DEMUX_GET_ATTACHMENTS:
         case DEMUX_GET_PTS_DELAY:
+        case DEMUX_CAN_RECORD:
             return VLC_EGENERIC;
 
         default: