Add uniqueId to IRemotelyProvisionedComponent

This id is used to differentiate between implementations of the
IRemotelyProvisionedComponent interface. This is required to track
certificates and keys for each implementation. Without an implementation
id, we would have no way to associate persisted, remote provisioning
data with the appropriate IRemotelyProvisionedComponent.

Include VTS tests for compliance.

Test: VtsHalRemotelyProvisionedComponentTargetTest
Bug: 194696876

Change-Id: Id8bca26d71ecf9e389e68a269f782a9dc5ee6f01