Move last crash to trigger rollback to host side

Now it is possible for reboot to happen before the device test
completes and fail the test.

Let's move the last crash to trigger rollback to host side to
avoid this problem.

Bug: 178159821
Test: atest StagedRollbackTest
Change-Id: I7db8d8a585c6d42be7f8017b55fbd4c547d7b56a
Merged-In: I7db8d8a585c6d42be7f8017b55fbd4c547d7b56a
(cherry picked from commit d32e3526)