The dashbaord suggests that multiple tests are always capped at the same
value due to the timeout. To collect the actual metric, set a larger
timeout value, 10s for now.
Also, added a test to stop managed profile user. However, the test is
still finishing surprisingly fast because of the empty broadcast queue.
Bug: 62096041
Test: adb shell am instrument -e class android.multiuser.UserLifecycleTest -w com.android.perftests.multiuser/android.support.test.runner.AndroidJUnitRunner
Change-Id: Ia52db17525d9eb960c9a8c860cdb52c0f487e5f1
ec7c6963bd