Merge "Allow apex to use generated file_contexts" into main am: 6a4bb378

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2836495



Change-Id: I02084dd3d6c5e9039ce9b9f53942c21422c84d06
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>