commit 96a1ed07ad99c91cefd0347ef216029bd302df2f
author Jeff Vander Stoep <jeffv@google.com> Wed Mar 08 13:35:00 2017 -0800
committer Jeffrey Vander Stoep <jeffv@google.com> Fri Mar 10 22:10:19 2017 +0000
tree 697e31e32b1fbcf7a21e190683796a08005ba58e
parent e9e59e224daf598de53e16e36d71204b864e8354

Prefer file_contexts from /system & /vendor

This changes selinux_android_file_context_handle to prefer loading
file_contexts from /system/etc/selinux & /vendor/etc/selinux,
while falling back to the pre-existing behavior of loading from /
and loading a file_contexts.bin.

Test: Marlin and Bullhead build and boot with no new denials.
Test: Marlin and Bullhead recovery boots with no new denials.
Test: Bullhead boots with file_contexts.bin in /
Test: Marlin boot with /system/etc/selinux/plat_file_contexts and
      /vendor/etc/selinux/nonplat_file_contexts.
Bug: 36002414

Change-Id: Ib3af07eaba1cd7bdef329872a29c5354abf8bebd