[DO NOT MERGE] Increase timeout for UIAutomation

In android U, the timeout was increased. Backporting this change to this branch to allow tests to pass for partner devices.

Bug: 281653513

Test: Partner device (b/281653513#comment29)
Change-Id: I0859bdd7005638e16b6d265f33132d17b47b7d0a
2 files changed