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

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



Change-Id: Ie3e3a75e4298218c8cd1c2ae5c14638c098ac41f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>