x86: Add DFI BT700 BayTrail board support

This patch adds support for the DFI BayTrail BT700 QSeven SoM installed
on the DFI Q7X-151 baseboard. The baseboard is equipped with the Nuvoton
NCT6102D Super IO chip providing the UART as console.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/board/dfi/dfi-bt700/MAINTAINERS b/board/dfi/dfi-bt700/MAINTAINERS
new file mode 100644
index 0000000..9c3d699
--- /dev/null
+++ b/board/dfi/dfi-bt700/MAINTAINERS
@@ -0,0 +1,8 @@
+congatec DFI-BT700
+M:	Stefan Roese <sr@denx.de>
+S:	Maintained
+F:	board/dfi/dfi-bt700
+F:	include/configs/dfi-bt700.h
+F:	configs/dfi-bt700-q7x-151_defconfig
+F:	arch/x86/dts/dfi-bt700.dtsi
+F:	arch/x86/dts/dfi-bt700-q7x-151.dts