Waiting for the setup wizard to go away

This is a workaround for b/309008042 where it appears that after being
dismissed by the test infra, setup wizard doesn't immediately go away.

This CL will wait 2 minutes for the dismissal, and provide a better
diags when the wizard doesn't go away after 2 min.

Bug: 309008042
Test: presubmit
Flag: N/A
Change-Id: I26eb2f202842702af08c424929d74fbd21eb872d