- Also update vold to create sandboxes for secondary storage devices.
- Since bind mounts are created in the process specific namespaces, we
don't need /mnt/storage anymore which we were using it to prevent
some bind mounts from propagating onto /mnt/runtime/write.
- Create bind mounts for {media,obb} dirs similar to data dir in
per process namespace.
- Also fix a bug where we are not passing correct packages to vold when
a new user starts.
Bug: 111890351
Test: manual
Change-Id: I1abbafabc58993860305e5a928c980420f89f289
3f0645ba83