Merge changes from topic 'trusty_km2_hal'

* changes:
  trusty: keymaster: update device tests to use 2.0 API
  trusty: keymaster: Implement abort
  trusty: keymaster: Implement finish
  trusty: keymaster: Implement update
  trusty: keymaster: Implement begin
  trusty: keymaster: Implement upgrade_key
  trusty: keymaster: Implement attest_key
  trusty: keymaster: Implement export_key
  trusty: keymaster: Implement import_key
  trusty: keymaster: Implement get_key_characteristics
  trusty: keymaster: Implement generate_key
  trusty: keymaster: Implement add_rng_entropy
  trusty: keymaster: Implement configure
  trusty: keymaster: Begin update from Keymaster 0.3 to 2.0