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