ARM: kirkwood: add SBx81LIFXCAT board

This is a series of line cards for Allied Telesis's SBx8100 chassis
switch. The CPU block is common to the SBx81GP24 and SBx81GT24 cards
cards collectively referred to as SBx81LIFXCAT in u-boot.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/alliedtelesis/SBx81LIFXCAT/Kconfig b/board/alliedtelesis/SBx81LIFXCAT/Kconfig
new file mode 100644
index 0000000..524c290
--- /dev/null
+++ b/board/alliedtelesis/SBx81LIFXCAT/Kconfig
@@ -0,0 +1,12 @@
+if TARGET_SBx81LIFXCAT
+
+config SYS_BOARD
+       default "SBx81LIFXCAT"
+
+config SYS_VENDOR
+       default "alliedtelesis"
+
+config SYS_CONFIG_NAME
+       default "SBx81LIFXCAT"
+
+endif