dxva2_h264: Unbreak compilation after 3176217c6

Signed-off-by: Martin Storsjö <martin@martin.st>

libavcodec/dxva2_h264.c

@@ -165,6 +165,8 @@ static void fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *
 static void fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
 {
     unsigned i, j;
+    const SPS *sps = h->ps.sps;
+    const PPS *pps = h->ps.pps;
     memset(qm, 0, sizeof(*qm));
     if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG) {
         for (i = 0; i < 6; i++)