Merge "Revert^2 "Add an explanation to ndk_library."" into main am: 2b5dd203

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/3254591



Change-Id: I15a6531c10fe0931d298bfe34f3e91238c9204e3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>