DO NOT MERGE Allow writable files in /sys/fs/selinux

Update the way excpetion lists for world writable
files work, by allowing either path to file, or
path to ignorable directory, which includes sub-
directories and files.

cherry-pick from AOSP

Change-Id: Ie4731a4e6347a8f9962841569c840e9d539f09c7
1 file changed