vp8 fix: re-allocate denoiser for spatial resize.

source/libvpx/vp8/encoder/onyx_if.c

Index: source/libvpx/vp8/encoder/onyx_if.c
===================================================================
--- source/libvpx/vp8/encoder/onyx_if.c	(revision 288740)
+++ source/libvpx/vp8/encoder/onyx_if.c	(working copy)
@@ -1259,6 +1259,14 @@
 
     vpx_free(cpi->tplist);
     CHECK_MEM_ERROR(cpi->tplist, vpx_malloc(sizeof(TOKENLIST) * cm->mb_rows));
+
+#if CONFIG_TEMPORAL_DENOISING
+    if (cpi->oxcf.noise_sensitivity > 0) {
+      vp8_denoiser_free(&cpi->denoiser);
+      vp8_denoiser_allocate(&cpi->denoiser, width, height,
+                            cm->mb_rows, cm->mb_cols);
+    }
+#endif
 }