KeyMint VTS: abandon tests when Begin fails am: 7fc26b99d3

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2106464

Change-Id: Id8e4af87df6865eb173d89b5608c25d2af25e2b9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>