lavc/vp9_raw_reorder_bsf: Fix operator ordering

Fixes CID 1413024.

libavcodec/vp9_raw_reorder_bsf.c

@@ -292,7 +292,7 @@ static int vp9_raw_reorder_filter(AVBSFContext *bsf, AVPacket *out)
             return err;
         }
 
-        if (in->data[in->size - 1] & 0xe0 == 0xc0) {
+        if ((in->data[in->size - 1] & 0xe0) == 0xc0) {
             av_log(bsf, AV_LOG_ERROR, "Input in superframes is not "
                    "supported.\n");
             av_packet_free(&in);