stub sys/file.h

Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
fix missing define

Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
header fixes

Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
fix sys/cddl/Makefile cflag

Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>