Merge "Add `assets` property for Android apps." into main am: c82e8441 am:...

Merge "Add `assets` property for Android apps." into main am: c82e8441 am: ab202d1a am: e5d4f786 am: 2e2a3766

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2786252



Change-Id: Ie9eb6b391e0ac19dbc5f8744c8868a8234b186cc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>