Android 9.0.0 release 21
Merge cherrypicks of [5371217, 5371218, 5370861, 5369688, 5370512, 5370513, 5371204, 5371205] into pi-qpr1-release

Change-Id: I2426d117dfad7c184258ea355a041c90063396bc
tree: b1e92ef7d81ec948fc96fbba37cefd4ff83e2ef1
  1. private/
  2. public/
  3. vendor/
  4. crosshatch-sepolicy.mk
  5. OWNERS