Enable the vp9 temporal denoiser

source/config/linux/x64/vp9_rtcd.h

Index: source/config/linux/x64/vp9_rtcd.h
diff --git a/source/config/linux/x64/vp9_rtcd.h b/source/config/linux/x64/vp9_rtcd.h
index cad7baa3ea3a2690fb13d91a7299fb9bd1b6266e..2e7d8a51eccedd460a972444b74e0a693060c858 100644
--- a/source/config/linux/x64/vp9_rtcd.h
+++ b/source/config/linux/x64/vp9_rtcd.h
@@ -218,6 +218,10 @@ void vp9_dc_top_predictor_4x4_c(uint8_t *dst, ptrdiff_t y_stride, const uint8_t
 void vp9_dc_top_predictor_8x8_c(uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left);
 #define vp9_dc_top_predictor_8x8 vp9_dc_top_predictor_8x8_c
 
+int vp9_denoiser_filter_c(const uint8_t *sig, int sig_stride, const uint8_t *mc_avg, int mc_avg_stride, uint8_t *avg, int avg_stride, int increase_denoising, BLOCK_SIZE bs, int motion_magnitude);
+int vp9_denoiser_filter_sse2(const uint8_t *sig, int sig_stride, const uint8_t *mc_avg, int mc_avg_stride, uint8_t *avg, int avg_stride, int increase_denoising, BLOCK_SIZE bs, int motion_magnitude);
+#define vp9_denoiser_filter vp9_denoiser_filter_sse2
+
 int vp9_diamond_search_sad_c(const struct macroblock *x, const struct search_site_config *cfg,  struct mv *ref_mv, struct mv *best_mv, int search_param, int sad_per_bit, int *num00, const struct vp9_variance_vtable *fn_ptr, const struct mv *center_mv);
 #define vp9_diamond_search_sad vp9_diamond_search_sad_c