MAINTAINERS: Add nds32

Add a maintainer information for the nds32(Andes) architecture.
Signed-off-by: Greentime Hu <greentime@andestech.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>

MAINTAINERS

@@ -868,6 +868,17 @@ X:	drivers/iio/*/adjd*
 F:	drivers/staging/iio/*/ad*
 F:	drivers/staging/iio/trigger/iio-trig-bfin-timer.c
 
+ANDES ARCHITECTURE
+M:	Greentime Hu <green.hu@gmail.com>
+M:	Vincent Chen <deanbo422@gmail.com>
+T:	git https://github.com/andestech/linux.git
+S:	Supported
+F:	arch/nds32/
+F:	Documentation/devicetree/bindings/interrupt-controller/andestech,ativic32.txt
+F:	Documentation/devicetree/bindings/nds32/
+K:	nds32
+N:	nds32
+
 ANDROID CONFIG FRAGMENTS
 M:	Rob Herring <robh@kernel.org>
 S:	Supported