Create a verify flag to support verification for entering repair mode am: 008cc90195

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2781892

Change-Id: I89e048657c2ad90dbd6838b92846be3eb4967473
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>