An entry for a communications engine installed and (possibly)
running on a platform (ie, CPU) on this host system.
Usage: Note that values of 'hrDeviceIndex' used to reference
entries in the 'xcmCommsEngineTable' SHALL reference
entries in the 'hrDeviceTable' with 'hrDeviceType' equal to
'hrDeviceProcessor' (representing host system CPUs and therefore
also having corresponding entries in the 'hrProcessorTable').