mainboard/biostar: Add support for Biostar AM1ML ver7.x

Adds AM1ML board. This board has AM1 Socket and supports all
new AM1 APUs from AMD. Based on asrock/imb-a180 board.
Successfully tested with SeaBIOS and Linux 3.8.x and Windows XP.
Successfully tested audio, video, network, PS/2 keyboard and mouse,
PCIe x16, COM port, SATA and USB.
LPT port is not tested yet and it’s unknown if it’s work.

Change-Id: I9ebb9acc590d38e47579adc263f45ae3f607684e
Signed-off-by: Sergej Ivanov <getinaks@gmail.com>
Reviewed-on: http://review.coreboot.org/9293
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Dave Frodin <dave.frodin@se-eng.com>
diff --git a/src/mainboard/biostar/Kconfig b/src/mainboard/biostar/Kconfig
index 7afd6a2..326edd7 100644
--- a/src/mainboard/biostar/Kconfig
+++ b/src/mainboard/biostar/Kconfig
@@ -2,6 +2,7 @@
 ## This file is part of the coreboot project.
 ##
 ## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+## Copyright (C) 2015 Sergej Ivanov <getinaks@gmail.com>
 ##
 ## This program is free software; you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
@@ -24,9 +25,14 @@
 config BOARD_BIOSTAR_M6TBA
 	bool "M6TBA"
 
+config BOARD_BIOSTAR_AM1ML
+	bool "AM1ML"
+
 endchoice
 
 source "src/mainboard/biostar/m6tba/Kconfig"
+source "src/mainboard/biostar/am1ml/Kconfig"
+
 
 config MAINBOARD_VENDOR
 	string