[automerger skipped] Add visibity for androidx prebuilts. am: 467ec3fd0c -s ours am: 1f5171b9b0 -s ours

am skip reason: Merged-In I9114ea285729d962366230d32f254619edd5ffa5 with SHA-1 7224d40f76 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/kotlinx.metadata/+/15799472

Change-Id: I59eca443895083578552294fbbd479bfcdc74724