Merge "Set apex_available of libbinder_headers" am: dd9c14e9dd am: 19f5b00175 am: bf136f3b8f

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

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I49b25f30fa9ef222812f93a78abd21089488c852