services/mgmt/device/impl: use hierarchicalAuth in device manager
services/mgmt/device/impl: use hierarchicalAuth in device manager

Converting the device manager to the standardized hierarchicalAuth for
identical ACL semantics as application and binary servers.

Change-Id: Idb392794afbc79fd6706895cc6581e6b11e54d8e

vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref