system_server.te: allow getopt/getattr on zygote socket

In 61dc3507, I forgot to allow
system_server to run getopt/getattr on the zygote socket.

Bug: 12061011
Change-Id: I14f8fc98c1b08dfd3c2188d562e594547dba69e6

system_server.te

@@ -13,6 +13,10 @@ allow system_server zygote:fd use;
 allow system_server zygote:process sigchld;
 allow system_server zygote_tmpfs:file read;
 
+# Needed to close the zygote socket, which involves getopt / getattr
+# This should be deleted after b/12061011 is fixed
+allow system_server zygote:unix_stream_socket { getopt getattr };
+
 # system server gets network and bluetooth permissions.
 net_domain(system_server)
 bluetooth_domain(system_server)