vts(wifi): stop framework after getting pm feature list

1. In AndroidTest.xml, do NOT add precondition to stop Android framework
2. Get pm feature list in method "CreateTestCases" with Android framework alive
3. Disable Android framwork in method "setUpClass"
4. Enable Android framework in method "tearDownClass"

Follow the above 4 steps, we can run VTS test cases without framework interference
and also can get pm feature list to identify if NAN feature is existed or not

Test: Run VTS tests
vts-tradefed run commandAndExit vts-hal --skip-all-system-status-check --primary-abi-only --skip-preconditions --module VtsHalWifiV1_0Host -l INFO

Change-Id: Ib1e74ff03e97bb26e44faa73645c978f05db6069
2 files changed