MAINTAINERS: Add a missing entry for the sun4m machines

Signed-off-by: NPhilippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20181125205000.10324-10-philmd@redhat.com>
Signed-off-by: NLaurent Vivier <laurent@vivier.eu>

MAINTAINERS

@@ -1044,6 +1044,7 @@ F: hw/misc/eccmemctl.c
 F: hw/misc/slavio_misc.c
 F: include/hw/sparc/sparc32_dma.h
 F: pc-bios/openbios-sparc32
+F: include/hw/sparc/sun4m_iommu.h
 
 Sun4u
 M: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>