Add a native test to check the qtaguid module nolonger hold the fd of a closed socket. The test does not work in java because android framework will force untag the socket before closing it. Bug: 36374484 Test: run this test as CTS test and all devices should pass Signed-off-by: Chenbo Feng <fengc@google.com> Change-Id: I9e015d412d1aec10d843dfee4b480169d1f6ff8e