Make net_test enable CONFIG_NETFILTER_TPROXY as well.

This unbreaks the tests on 3.10 kernels.

Bug: 36374484
Test: qtaguid_test.py passes on 3.10, 3.18, 4.4 common and device kernels
Change-Id: Id02163bbb7d7311cba47888ae5680ad94422b7aa
diff --git a/net/test/run_net_test.sh b/net/test/run_net_test.sh
index cfb621b..ad25fe3 100755
--- a/net/test/run_net_test.sh
+++ b/net/test/run_net_test.sh
@@ -14,6 +14,7 @@
 OPTIONS="$OPTIONS CONFIG_NETFILTER_XT_MATCH_QUOTA"
 OPTIONS="$OPTIONS CONFIG_NETFILTER_XT_MATCH_QUOTA2"
 OPTIONS="$OPTIONS CONFIG_NETFILTER_XT_MATCH_QUOTA2_LOG"
+OPTIONS="$OPTIONS CONFIG_NETFILTER_TPROXY"
 OPTIONS="$OPTIONS CONFIG_NETFILTER_XT_MATCH_SOCKET"
 OPTIONS="$OPTIONS CONFIG_NETFILTER_XT_MATCH_QTAGUID"
 OPTIONS="$OPTIONS CONFIG_INET_UDP_DIAG CONFIG_INET_DIAG_DESTROY"