DO NOT MERGE Use default key permissions for ext4enc

(cherry-picked from commit 478a01d6f2081f7807b99774d005fee373847f23)

As per discussion default permissions are the correct ones.
Note that since we use logon keys, they cannot be read outside
the kernel.

Note also that we limit who can read/write keys in selinux policy.

Bug: 18151196
Change-Id: I15dc0de92643ae1472b0cde79c464fb3e1a1d453
1 file changed