MAINTAINERS: Add a missing entry for the sun4m machines

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20181125205000.10324-10-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
1 file changed