Set NoAuthRequired on boot level 0 key

Since no authentication is used for this key (only the
MaxUserPerBoot tag) the NoAuthRequired tag must be present.
Some buggy KM implementations don't require this.

Bug: 176450483
Test: keystore2_test
Test: boot Crosshatch device and check logs
Change-Id: Id12c0752938d746a9f6fbedbeb42fefd6049c20c
1 file changed