sunxi: Add Sinlinx SinA33 defconfig

Sinlinx SinA33 is a core/daughter board SDK kit from Sinlinx. It has
the A33 SoC, USB host, USB OTG, audio input/output, LCD, camera, SDIO
and GPIO headers.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
diff --git a/board/sunxi/MAINTAINERS b/board/sunxi/MAINTAINERS
index 7a42055..1f12a64 100644
--- a/board/sunxi/MAINTAINERS
+++ b/board/sunxi/MAINTAINERS
@@ -162,6 +162,12 @@
 S:	Maintained
 F:	configs/MSI_Primo81_defconfig
 
+SINLINX SINA33 BOARD
+M:	Chen-Yu Tsai <wens@csie.org>
+S:	Maintained
+F:	configs/Sinlinx_SinA33_defconfig
+W:	http://linux-sunxi.org/Sinlinx_SinA33
+
 TZX-Q8-713B7 BOARD
 M:	Paul Kocialkowski <contact@paulk.fr>
 S:	Maintained