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
2 files changed