Fixing tests to reflect change in CDDL

This fixes up the tests to go along with the change to the signature
of the MAC key. Primarily, this adds the MAC tag from the MACing
operation over the public key set to be signed into the AAD of the
signature of said MAC key.

Bug: 189018262
Test: atest VtsHalRemotelyProvisionedComponentTargetTest
Change-Id: Ibdcf242e0ae73dee1a08fe98d939130055e4492e