[automerger skipped] Move bionic test libraries to a default, for easy consumption in cts. am: 4e5e0f2d66 -s ours

am skip reason: Merged-In I271668e83aed239107b9129dfb707f03bae47cfa with SHA-1 f5c9a65046 is already in history

Original change: https://android-review.googlesource.com/c/platform/bionic/+/3394596

Change-Id: I5423102dd40499c44f6518687408c0d4a4f03969
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>