sunxi: Add iNet D978 rev2 defconfig

The iNet D978 rev2 is a tablet board designed by iNet, which is intended to
use on 10" tablets with a appearance like Apple iPad. It has A33 SoC, 1GB
RAM, 8GB/16GB NAND, SDIO Wi-Fi, a MicroUSB port and a MicroSD slot.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
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 7072bd8..cf4d4fb 100644
--- a/board/sunxi/MAINTAINERS
+++ b/board/sunxi/MAINTAINERS
@@ -156,6 +156,11 @@
 S:	Maintained
 F:	configs/iNet_86VS_defconfig
 
+INET D978 BOARD
+M:	Icenowy Zheng <icenowy@aosc.xyz>
+S:	Maintained
+F:	configs/iNet_D978_rev2_defconfig
+
 LAMOBO-R1 BOARD
 M:	Jelle de Jong <jelledejong@powercraft.nl>
 S:	Maintained