tree 09b4e0841886d73c0ba5be7eeed75da58e113671
parent c312e15cc27891f4f7b313a80b7761ef0d77ced6
author Alex Van Damme <atv@google.com> 1528855341 -0700
committer Alex Van Damme <atv@google.com> 1528855420 -0700

Fix some funky dependencies around rootfs images

- Doing m followed by m sdcard would cause lots of stuff to happen
twice, due to refetching the raw rootfs. Also generally refeching the
root tarball was happening way more than it ever should.
- Clean up the way fetching the rootfs happens,
such that it's not re-copied unless actually changed.

Change-Id: I8af7b144c0f659482b2b7ddef318dce6a54cdeaa