av1_dec_fuzzer: Fix missing field initializer for 'cfg'

Change-Id: Ic62716356be74b61068ff078bd929b16120c4933
diff --git a/examples/av1_dec_fuzzer.cc b/examples/av1_dec_fuzzer.cc
index 96d16a8..00fe669 100644
--- a/examples/av1_dec_fuzzer.cc
+++ b/examples/av1_dec_fuzzer.cc
@@ -48,7 +48,7 @@
   aom_codec_ctx_t codec;
   // Set thread count in the range [1, 64].
   const unsigned int threads = (header[0] & 0x3f) + 1;
-  aom_codec_dec_cfg_t cfg = { threads, 0, 0, CONFIG_LOWBITDEPTH };
+  aom_codec_dec_cfg_t cfg = { threads, 0, 0, CONFIG_LOWBITDEPTH, { 1 } };
   if (aom_codec_dec_init(&codec, decoder->codec_interface(), &cfg, 0)) {
     return 0;
   }