mosys: allow openat on amd64 and arm.

This allows openat on amd64 and arm board because glibc is using this
system call when calling open.

TEST=no crash when running /usr/sbin/mosys on samus with glibc 2.27

Change-Id: If0d0df8afdd433f50b0c9dc048e9e7823399bf69
Commit-Ready: Yunlian Jiang <>
Tested-by: Yunlian Jiang <>
Reviewed-by: Mike Frysinger <>
2 files changed