Add tests to services/tests/net test mapping

FrameworksNetIntegrationTests goes from postsubmit to presubmit (it has
been green since it was checked in).
FrameworksNetDeflakeTest goes to postsubmit and will go to presubmit if
it proves to be non-flaky.

Test: results on test dashboard for FrameworksNetIntegrationTests
      this CL is necessary to get test results for the deflake test

Change-Id: I9722a082bae32e231e60f53dac5fea4b49028865