Fix requesting_bugreport_device_owner on watches

In the "Device Owner Requesting Bugreport Tests" section in CtsVerifier,
the list did not scroll on small devices. This solution mirrors the one
used by positive_device_owner.xml and others by setting a fixed height
on the ListView for small devices. It's not ideal, but seems to be used
elsewhere and achieves the goal.

Bug: 63397284
Test: Manually verified on O sawfish/swordfish
Change-Id: I15216a13ea318768668f7b4e0d1518ddae601e3a
1 file changed