We are going to enforce that each property has an explicit owner, such
as system, vendor, or product. This attaches vendor_property_type to
properties defined under vendor sepolicy directories.
Bug: 159097992
Test: m selinux_policy && boot device
Change-Id: Ibed833cd9e5d786e82985ded6bc62abdf8cd9ded
Merged-In: Ibed833cd9e5d786e82985ded6bc62abdf8cd9ded
(cherry picked from commit 44eb8e1f89adf04fd413a69391fd444ba68af742)
(cherry picked from commit 1922128397116d551a663d5344b4456a84bf46eb)
