Tests to verify behavior of adoptable disks.

When a device claims to support adoptable disks, let's actually
adopt one to verify expected developer behavior.  For example,
verify that both app and private data move together, and that
primary shared storage behaves predictibly when moved between
volumes.

Verify that we can stage both initial and inherited installs
directly on an adopted volume.

Bug: 22633097
Change-Id: I612f794ead35d04b8d03b868fd0fd826e27804f1
4 files changed