x86: Add theadorable-x86-dfi-bt700 board support

This patch adds support for the BayTrail based theadorable-x86-dfi-bt700
board which uses the DFI BT700 BayTrail Qseven SoM on a custom baseboard.
The main difference to the DFI baseboard is, that it isn't equipped
with a Super IO chip and uses the internal HS SIO UART (memory mapped
PCI based) as the console UART.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: 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
index 9c3d699..6639787 100644
--- a/board/dfi/dfi-bt700/MAINTAINERS
+++ b/board/dfi/dfi-bt700/MAINTAINERS
@@ -4,5 +4,7 @@
 F:	board/dfi/dfi-bt700
 F:	include/configs/dfi-bt700.h
 F:	configs/dfi-bt700-q7x-151_defconfig
+F:	configs/theadorable-x86-dfi-bt700_defconfig
 F:	arch/x86/dts/dfi-bt700.dtsi
 F:	arch/x86/dts/dfi-bt700-q7x-151.dts
+F:	arch/x86/dts/theadorable-x86-dfi-bt700.dts