Merge "Adds an init host lib for use in host_apex_verifier." am: c015f7f96d am: 6d9c7b738d am: 3156527be1

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2019275

Change-Id: I2fa58a19e8ec009f889eb50b389083aa90fb95f5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>