fixup event tile seccomp policy

[mmcgee-jump]

# client: need to be able to establish connections to the event server.
socket: (and (eq (arg 0) "AF_INET")
#             (eq (arg 1) "SOCK_STREAM|SOCK_NONBLOCK") TODO: UNCOMMENTING CAUSES SIGSYS ?
             (eq (arg 2) 0))