Added flaky test support If a device doesn't have gps connection because it is indoors then the device will not fail if it couldn't acqure. Bug: 152004075 Test: atest CtsStatsdHostTestCases:android.cts.statsd.atom.UidAtomTests#testGnssStats Change-Id: I66fb77c6a32583fa682ce2b57ee5af0e234ba07d