Snippets for aom 3.15.1 from FreeBSD 151arm64

Sourced from https://pkg-status.freebsd.org/ampere5/data/latest-per-pkg/aom/3.15.1/151arm64-default.log.

• /wrkdirs/usr/ports/multimedia/aom/work/libaom-3.15.1/aom_ports/aarch64_cpudetect.c:143:18: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
    143 |     elf_aux_info(type, &ret, sizeof(ret));
        |     ~~~~~~~~~~~~ ^~~~