mosys: whitelist prlimit64 in seccomp

This whitelist prlimit64 in seccomp because coreutils is calling this
system call.

BUG=chromium:894936
TEST=no crash on coreutils

Change-Id: Ie683190f728d2981b813a433b422ea276ca7a1c9
Reviewed-on: https://chromium-review.googlesource.com/1279110
Commit-Ready: Yunlian Jiang <yunlian@chromium.org>
Tested-by: Yunlian Jiang <yunlian@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
2 files changed