MAINTAINERS: add ARM Marvell Berlin SoC

This adds Marvell Berlin SoC to the list of maintainers. I am taking
maintainership for arch/arm/mach-berlin/.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>

MAINTAINERS

@@ -1032,6 +1032,12 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	arch/arm/mach-mvebu/
 
+ARM/Marvell Berlin SoC support
+M:	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	arch/arm/mach-berlin/
+
 ARM/Marvell Dove/Kirkwood/MV78xx0/Orion SOC support
 M:	Jason Cooper <jason@lakedaemon.net>
 M:	Andrew Lunn <andrew@lunn.ch>