system_server.te: allow getopt/getattr on zygote socket

In 61dc35072090f2735af2b39572e39eadb30573eb, I forgot to allow
system_server to run getopt/getattr on the zygote socket.

Bug: 12061011
Change-Id: I14f8fc98c1b08dfd3c2188d562e594547dba69e6
1 file changed