oss-fuzz: superres related uninitialized value warnings
Just dumping the samples here. The warnings go either away or move to resize_c() with ecf72597 reverted.
clusterfuzz-testcase-minimized-dav1d_fuzzer_mt-5757117496033280
clusterfuzz-testcase-minimized-dav1d_fuzzer_mt-5673813048557568
clusterfuzz-testcase-minimized-dav1d_fuzzer_mt-5651907406725120
clusterfuzz-testcase-minimized-dav1d_fuzzer-5730334348410880
clusterfuzz-testcase-minimized-dav1d_fuzzer-5671919538405376
clusterfuzz-testcase-minimized-dav1d_fuzzer_mt-5637142617784320
clusterfuzz-testcase-minimized-dav1d_fuzzer-5634529432174592