kernel: Rename MESSAGE to CPORT_MESSAGE (C added because PORT_MESSAGE structure already exists in public headers) to avoid conflict with MESSAGE class from message.cpp.
kernel: Rename MESSAGE to CPORT_MESSAGE (C added because PORT_MESSAGE structure already exists in public headers) to avoid conflict with MESSAGE class from message.cpp.

bragin/ring3k,bragin/ring3k,bragin/ring3k,bragin/ring3k