DO NOT MERGE - Merge Android 10 into master

Bug: 139893257
Change-Id: I17ba1e731bd403ec39551ccbae7b7a614415844e
tree: 28046dd631ccf121fc06482e067ba49dc44207b1
  1. hal/
  2. ipacm/
  3. ipanat/
  4. configure.ac
  5. Makefile.am
  6. os_pickup.bp
  7. os_pickup.mk