Add a verification flow for the user to exit repair mode am: 1c95758c am: dc17915c

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2781893



Change-Id: I866230e7ede99e4237e0be28218304568b2f6f5e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>