Fix VtsFmqPerformanceTest

* Stop using system remount.
* Fix the push list.
* Start the test service with env VTS_ROOT_PATH and
  TREBLE_TESTING_OVERRIDE

Bug: 64379933
Test: vts-tradefed run vts -m VtsFmqPerformanceTest
Change-Id: Ia1eadcb0e29537095005ad81e9ee831900b29da6
2 files changed