Using jarjar on intermediate libraries causes issues when they are
combined with other libraries that use different jarjar rules, as the
resulting binary may contain multiple incompatible copies of the
classes. Instead, jarjar should be used on the final artifact, after
combining the libraries.
Ensure NetworkStackJarJarRules is not applied on intermediate libraries
like TetheringIntegrationTestsLib, but instead apply it on
TetheringIntegrationTests or CtsTetheringTest.
Bug: 192535368
Test: atest TetheringCoverageTests TetheringIntegrationTests \
CtsTetheringTest
Change-Id: I248a533651984de81f676336c0e74e3788610bbb
0015f04ec7