Motivation: Domain is overly permissive. Start removing permissions
from domain and assign them to the domain_deprecated attribute.
Domain_deprecated and domain can initially be assigned to all
domains. The goal is to not assign domain_deprecated to new domains
and to start removing domain_deprecated where it is not required or
reassigning the appropriate permissions to the inheriting domain
when necessary.

Bug: 25433265
Change-Id: I8b11cb137df7bdd382629c98d916a73fe276413c

vold works with two broad classes of block devices: untrusted devices
that come in from the wild, and trusted devices.

When running blkid and fsck, we pick which SELinux execution domain
to use based on which class the device belongs to.

Bug: 19993667
Change-Id: I44f5bac5dd94f0f76f3e4ef50ddbde5a32bd17a5