MAINTAINERS: add myself as Marvell berlin SoC maintainer

I would like to take maintainership for Marvell berlin SoCs.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
diff --git a/MAINTAINERS b/MAINTAINERS
index 1cd38a7..25f543c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1442,6 +1442,7 @@
 F:	arch/arm/configs/mvebu_*_defconfig
 
 ARM/Marvell Berlin SoC support
+M:	Jisheng Zhang <jszhang@marvell.com>
 M:	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained