Enforce TRUSTED_CONFIRMATION_REQUIRED

Right now we just automatically fail because we have no MAC to validate.
In the future, this is where we will check the MAC from the trusted
confirmation service.

Bug: 128851722
Test: Keymaster VTS 4.0 + Trusty
Change-Id: Ib0fb608d0bb0340c937b4e2dc5e902cd6339ee79
5 files changed