lavc: add Intel libmfx-based HEVC decoder.
diff --git a/libavcodec/qsvdec.c b/libavcodec/qsvdec.c
index 5263bf5..8c324f4 100644
--- a/libavcodec/qsvdec.c
+++ b/libavcodec/qsvdec.c
@@ -53,7 +53,8 @@
 {
     if (!session) {
         if (!q->internal_session) {
-            int ret = ff_qsv_init_internal_session(avctx, &q->internal_session, NULL);
+            int ret = ff_qsv_init_internal_session(avctx, &q->internal_session,
+                                                   q->load_plugins);
             if (ret < 0)
                 return ret;
         }