Merge "convert hidden visibility flag to feature" am: aea50670 am: dfe515bd

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2538450



Change-Id: I3eb8ff972704741e97adc3a1fc66fc4abc66b48c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>