Merge "Set apex_available of libbinder_headers" am: dd9c14e9dd am: 19f5b00175

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1574814

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ia2cec80b295cb2df7fec008225d5d42c8c7ce569