Waking device up before device.findObject()

I suspect that device.findObject() may return null if the device wasn't specifically woken up. Let's see if this fixes the failing tests.

Bug: 72967764
Test: atest google/perf/jank/SystemUI/UbSystemUIJankTests:android.platform.systemui.tests.jank.SystemUiJankTests#testRecentAppsFling
Change-Id: I2c377f6f03b8b8f5c2accc5a9d5b61b179b9c2de