webservd: whitelist epoll_create1 in seccomp filter policy

libevent has been upgraded to 2.1.8 (CL:443260), which uses the
epoll_create1 syscall. This CL whitelists the epoll_create1 syscall in
the seccomp filter policy for webservd.

TEST=Verify that webservd runs properly.

Change-Id: Ifa985d1cf663cf52109c5298bb28458e6b3846f0
Reviewed-on: https://chromium-review.googlesource.com/449964
Commit-Ready: Ben Chan <benchan@chromium.org>
Tested-by: Ben Chan <benchan@chromium.org>
Reviewed-by: Srinivasa duvvuri <sduvvuri@chromium.org>
1 file changed