Enable MFC application to run on a Dense Port Concentrator

The chassisd (chassis daemon) process runs on the Routing Engine to communicate directly with its peer processes running on the Packet Forwarding Engine. The chassisd process has been enhanced to enable the Media Flow Controller (MFC) application to run on a Dense Port Concentrator (DPC) with an 86 blade for high application throughput and a large amount of solid state storage on MX routers. The chassisd process detects the installation of the modular x86 blade for MFC services and monitors the physical status of hardware components and the field replaceable units (FRUs) that enable MFC to be run on the x86 blade.